5.5.5.1 - Arnold for Maya

17 December 2025

MtoA 5.5.5.1 is a bugfix release using Arnold 7.4.4.1. For the full list of features in MtoA 5.5.5, see the MtoA 5.5.5 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

• MTOA-2601 - Imager Attribute Editor updating incorrectly with multiple instances of the same node
• MTOA-2616 - Xgen Procedurals not exported when using Maya USD
• ARNOLD-16840 - Fixed custom AOV settings resetting when in interactive mode.
• ARNOLD-17049 - Fixed bloom rotation in aperture mode for angles below -180°
• ARNOLD-17058 - [GPU] Fixed incorrect per-depth ray counts reported in stats.
• ARNOLD-17076 - Fixed random missing lights when using light_group and shadow_group on ginstance.
• ARNOLD-17088 - Fixed random crash when using curves and points nodes with min_pixel_width.
• ARNOLD-17140 - Faster procedural node destruction when most of its nodes are modified. Fixes very slow instancer destruction.
• ARNOLD-17149 - [GPU] Fixed small per-instance GPU memory leak.
• ARNOLD-17151 - Fixed an incorrect "Rendering CPU utilization was only 0%" message being reported when utilization was greater than 0%.
• ARNOLD-17171 - Fixed AiTextureTxFileNeedsUpdate returning false when colorconvert arguments contain empty spaces.
• usd#2467 - Hidden primitives do not show up when turned visible
• usd#2472 - Regression in render settings default value for autoTX
• usd#2478 - Support the Z AOV for the Hydra depth buffer

System Requirements

• Maya 2024, 2025, or 2026
• Windows 10 or later, with the Visual Studio 2019 redistributable.
• Linux with at least glibc 2.28. This is equivalent to RHEL/Rocky 8.
• x86-64 CPUs need to support the SSE4.1 instruction set.
• macOS 11 and later for Maya 2024
• Apple Mac models with M series chips:
  • Natively supported by Arnold for Maya 2024
• 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 580.95.05 or higher drivers.
  • On Windows, we recommend 581.42 or higher drivers.
• Intel OIDN GPU support is limited to:
  • macOS
    • Apple native CPUs (M1 and newer)
  • Linux
    • NVIDIA GPUs using Turing or newer architectures
  • Windows
    • 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