MAXtoA 5.2.1 is a hotfix release, updating to Arnold


  1. Download Arnold for 3ds Max.
  2. Follow the installation instructions.

System Requirements

  • Autodesk 3ds Max 2021, 2022, 2023.

  • 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 chips 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.
  • Optix™ denoiser requires an NVidia GPU with CUDA™ Compute Capability 5.0 and above.

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.

Bug Fixes

  • MAXTOA-1310 - The ARV's Enable AOVs option does not work properly and should be removed
  • MAXTOA-1356 - Volume in viewport: improve the loading time of the VDB grids
  • MAXTOA-1366 - Volume in viewport : frames sometimes skipped when playing an animation
  • MAXTOA-1367 - Arnold Volume UI: with multiple grids, selecting one grid resets the vertical scrollbar
  • MAXTOA-1370 - Arnold volume object : keep the settings for the grids when reloading the vdb
  • MAXTOA-1372 - Crash on rendering a sequence using ARV
  • MAXTOA-1401 - Volume in viewport : not possible to switch from bounding box mode, combo is greyed out
  • MAXTOA-1402 - Hide the Maps rollout from the imagers UI
  • MAXTOA-1404 - Change 'Arnold Answers' to 'Arnold Community' in the Help menu

  • ARNOLD-12230 - Crash when rendering quad lights with non-default roundness in multiple render sessions
  • ARNOLD-12229 - Crash when adjusting a camera used across multiple render session lifetimes
  • ARNOLD-12228 - Deep driver crashes when batch rendering with progressive negative-AA
  • ARNOLD-12223 - Do not show a dialog box when loading invalid plugins on Windows
  • ARNOLD-12216 - Thread priority was no longer affecting render threads on Windows
  • ARNOLD-12208 - Crash when destroying and recreating a RenderSession with GPU rendering or Optix denoising
  • ARNOLD-12054 - Restarted checkpoint renders were always starting progress at 0%
  • ARNOLD-12192 - [Alembic] Root of b-spline curve is cut short
  • ARNOLD-12253 - [GPU] Crash when deleting and creating render sessions for the same universe
  • ARNOLD-12037 - [GPU] Artifacts in Light Path Expression AOVs using closure labels

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