18 September 2024
MAXtoA 5.7.5.0 is a major feature release using Arnold 7.3.4.1.
Installation
Enhancements
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OpenPBR Surface Viewport Improvements: The 3ds Max High Quality viewport uses a full-featured viewport shader for the Arnold OpenPBR Surface shader. (MAXTOA-1844)
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Arnold specific options added to Physical Material: The 3ds Max Physical Material, which renders as an Arnold Standard Surface, has two rollouts, which give you access to all the features of Standard Surface. (MAXTOA-1517)
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Aligning options.nits_per_unit with the Physical Scale: MAXtoA now automatically sets the options.nits_per_unit based on the 3ds Max Physical Scale parameter, to align physical luminance values across 3ds Max to render the same. This may slightly change the appearance of renders compared to MAXtoA 5.7.4.0 where options.nits_per_unit was always using its default value of 1000, whereas now it is given the value of the Physical Scale divided by pi. (MAXTOA-1834)
Bug Fixes
- MAXTOA-1791 - Arnold RenderView crashes when you click a light with Light Shape Visible enabled.
- MAXTOA-1874 - A bug in the toolbar button "IPR in Arnold Render View" would incorrectly wait for the render to be complete, instead of starting it interactively. This is fixed.
- ARNOLD-14289 - Crash when interactively removing operator nodes
- ARNOLD-15406 - [GPU] Uninitialized memory causing random crashes
- ARNOLD-15437 - open_pbr_surface was not supported in arnold MaterialX implementation
- ARNOLD-15445 - [GPU] Crash with multiple GPUs
- ARNOLD-15453 - OpenPBR is not writing to the coat AOV
- ARNOLD-15465 - Setting IOR to high values in OpenPBR causes NaNs
- usd#2090 - Fixed crashes when registering the TfNotice callback multiple times
// Stephen Blair
// Arnold Renderer Support
