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5.2.1.1 - Arnold User Guide

05 Oct 2022

This is is a bugfix release. For the full list of features and requirements see the MtoA 5.2.1 release notes.

System Requirements

  • 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.
  • macOS 10.13 or later.
  • CPUs need to support the SSE4.1 instruction set. Apple Mac models with M series chip are supported under Rosetta 2 mode.
  • GPU rendering works on Windows and Linux only and requires an NVIDIA GPU of the Ampere, Turing, Volta, Pascal, or Maxwell architecture. We recommend using the 495.46 or higher drivers on Linux and 511.09 (Quadro), 511.09 (GeForce), or higher on Windows. See Arnold GPU for more information.
  • Optix™ denoiser requires an NVidia GPU with CUDA™ Compute Capability 5.0 and above.

The driver type must be set to DCH.

In the driver page, select "Windows Driver Type:" DCH

The cache will also need to be re-populated after installing a new Arnold version, updating to a new NVIDIA driver , or changing the hardware configuration of GPUs on the system. More information can be found here.

Maya Plugins Compatibility MtoA 5.2.1.1 works with the following Maya plugins

Bug Fixes

  • MTOA-1081 - "Bake Selected Geometry" does not include displacement
  • MTOA-1159 - Standin operator UI extremely slow with large number of nodes
  • MTOA-1171 - AttributeEditor of aiOslShader does not work properly in Python2 environment
  • MTOA-1165 - [RenderView] Render Callbacks are called too often on first load of Arnold Render View
  • ARNOLD-12554 - [RenderView] Time stamp not displaying in snapshots anymore
  • MTOA-1173 - [Viewport] Cannot turn off the Arnold Viewport HUD

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