5.5.4.1 - Arnold for Maya

27 August 2025

Arnold for Maya 5.5.4.1 uses Arnold 7.4.3.1 and is a bugfix release. For the full list of features in MtoA 5.5.4.0, see the MtoA 5.5.4.0 release notes.

Installation

• Download Arnold for Maya from your Autodesk Account.
• Follow these installation instructions.

Bug Fixes

• ARNOLD-16317 - Corrupt BVH was generated in certain rare situations, resulting in crashes or missing objects
• ARNOLD-16439 - Removed "missing parallel_init metadata" warning for funcptr procedurals
• ARNOLD-16569 - AiProceduralExpand does not work with triggers_reinitialize
• ARNOLD-16576 - MaterialX documents containing textures with UDIMs and relative paths do not render
• ARNOLD-16591 - GPU update is slow with negative progressive rendering and high AA
• ARNOLD-16612 - Very large unnormalized lights can have NaN in bounds
• ARNOLD-16615 - Only reevaluate procedural instancing optimization when scene is modified
• ARNOLD-16622 - Modified lights in IPR are not properly accounted for with global light sampling
• ARNOLD-16752 - Geometry changes are not reflected in the scene bounding box
• ARNOLD-16576 - MaterialX documents containing textures with UDIMs and relative paths does not render
• usd#2349 - Fix Husk renders using the Arnold product type overwriting the same output path when rendering multiple frames in same proces
• usd#2392 - Fix a warning due to additional metadata parameters, typeName, and colorSpace introduced in USD 25.05

System Requirements

• Autodesk Maya 2023, 2024, 2025
• Windows 10 or later, with the Visual Studio 2019 redistributable
• Linux with at least glibc 2.17 and libstdc++ 4.8.5 (gcc 4.8.5)
• macOS 11 or later
• x86-64 CPUs need to support the SSE4.1 instruction set. Apple Mac models with M series chips are natively supported
• GPU rendering works on Windows and Linux only and requires an NVIDIA GPU with Maxwell architecture or later
  • On Linux, we recommend 570.153.02 or higher drivers
  • On Windows, we recommend 573.42 or higher drivers
• Optix denoiser requires an NVidia GPU with