5.5.2.1 - Arnold for Maya
9 June 2025
MtoA 5.5.2.1 uses Arnold 7.4.2.1 and is a bugfix release. For the full list of features in MtoA 5.5.2, see the MtoA 5.5.2 release notes.
Installation
Download Arnold for Maya from your Autodesk Account. See Download Arnold for more information about downloading MtoA from your Autodesk Account.
Follow these installation instructions.
Bug Fixes
- ARNOLD-15719 - Crash when triplanar.smooth_before_displacement is passed to displacement
- ARNOLD-16065 - Multipart render fails because parts do not have unique names
- ARNOLD-16157 - Lights in moved procedurals instances are not properly moved
- ARNOLD-16203 - Failures and crashes when rendering to exr in append mode
- ARNOLD-16234 - Crash when rebuilding an instanced object
- ARNOLD-16253 - Publishing compounds with custom arnold nodes does not render
- ARNOLD-16289 - Updated the metadata for the density, roundness, width_edge, height_edge, and ramp parameters of the light blocker shader
- ARNOLD-16299 - Ensure that a procedural's bounding box is computed after all child nodes are updated
- ARNOLD-16301 - Improve clarity of GPU error messages when CUDA fails to load
- ARNOLD-16344 - Incorrect scene unit conversions when processing procedurals in procedural cache
- ARNOLD-16347 - Crash when using an invalid filename on an instanced procedural
- usd#2296 - Proper support of stats mode in the render delegate
- usd#2303 - Improve detection of hidden primitives that should be skipped
- usd#2309 - Fix recent conflict between primitives visibility and purpose
- usd#2313 - Arnold primvars aren't taken into account for ArnoldProceduralCustom primitives in usd
System Requirements
- Maya 2024, 2025, or 2026
- 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). This is equivalent to RHEL/CentOS 7.
- x86-64 CPUs need to support the SSE4.1 instruction set.
- macOS 10.13 or later, macOS 11 and later for Maya 2024
- Apple Mac models with M series chips:
- Natively supported by Arnold for Maya 2024
- Supported under Rosetta 2 mode for older versions of Maya
- GPU rendering and Optix denoising work on Windows and Linux only, and require an NVIDIA GPU with the Maxwell architecture or later.
- On Linux, we recommend 560.35.03 or higher drivers.
- On Windows, we recommend 560.76 or higher drivers.
- Intel OIDN GPU support is limited to:
- Apple native CPUs (M1 and newer)
- Intel Xe dedicated and integrated GPUs
- NVIDIA GPUs using Turing or newer architectures
- AMD GPUs with RDNA2 (Navi 21 only) and RDNA3 (Navi 3x) architectures