MtoA is a hotfix release, that uses Arnold It is fully binary compatible with 4.0.* versions. 


Autodesk Network Licensing in Arnold 6 requires new license files with an updated 2020 version. Please follow the instructions on this page to generate your license file. More info about Arnold 6 licensing can be found here.

Compatible Maya Versions 

  • Maya 2018
  • Maya 2019
  • Maya 2020

System Requirements

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Bug Fixes

  • Fixed crash in the RenderView when rendering with high verbosity 

    • core#10125 Bad chromaticity detection when linear and narrow color space are the same
    • core#9979 Crash when missing config in color_manager_ocio
    • core#10140 Crash with quad_light and IPR
    • core#9634 [GPU] OSL texture lookup crashing on a subsequent renders
    • core#10050 [GPU] Crash in displacement in when using tracing shaders in the scene
    • core#10128 [GPU] Curvature shader slows down render
    • core#10060 [GPU] Improve handling of stack overflow exceptions
    • core#10118 [GPU] Improve NVML detection
    • core#10196 [GPU] Light disappears during GPU IPR after modified
    • core#10163 [GPU] Single channel float texture artifacts
    • core#10231 [GPU] Texture and exception handling errors using multiple GPUs without NVLink
    • core#10146 Fixed a hang in crash handler
    • core#10175 Mix of two standard_surfaces with transmission hangs the render
    • core#9982 Negative values with thin_film and transmission
    • core#10165 [OSL] Artifacts when using randomwalk_bssrdf in OSL
    • core#10159 Random crash in subdivision after render interruption
    • core#10124 Surfaces with transmission depth can disappear with nested dielectrics on CPU
    • usd#592 Invalid face-varying primvars crash the render delegate
    • usd#596 Invalid USD is produced if polymesh is made of triangles and nsides is empty
    • usd#481 std::string, TfToken, and SdfAssetPath typed VtArrays are not converted when setting primvars


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