MAXtoA 4.2.0 introduces Arnold 6.1.0.0 and is a feature release bringing a brand new post-processing framework (imagers), support for nested dielectrics, much improved progressive and adaptive sampling, on-demand texture loading on GPU, and a variety of enhancements and fixes.
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.
System Requirements
Autodesk 3ds Max 2019, 2020 or 2021.
Windows 7 or later, with the Visual Studio 2019 redistributable.
CPUs need to support the SSE4.1 instruction set.
GPU rendering requires an NVIDIA GPU of the Turing, Volta, Pascal, or Maxwell architecture. We recommend using the 451.77 drivers or higher. See Getting Started with Arnold GPU for more information.
SSS type for Physical Material: You can now choose which Arnold Standard Surface SSS type will be used when rendering Physical Material in the render options. (maxtoa#722)
Import/Export MAXscript commands: Import and export materials MAXscript commands are now available. (maxtoa#814)
Import multiple materials: Arnold Menu->Import/Export->Import Materials lets you ctrl-click to pick more than one .ass/.mtlx to import several materials at once. (maxtoa#829)
New parameter for mix_shader: The add_transparency parameter is now exposed on the mix_shader shader. (maxtoa#854)
Physical camera exposure in Arnold Render View and ASS files: The physical camera exposure controls now apply when rendering in the Arnold Render View and in exported .ass files. (maxtoa#859)
Support for 3ds Max Bitmap filters: The filter (Pyramidal, Summed Area, None) of Bitmaps is now translated correctly to the Arnold image shader. (maxtoa#871)
GPU Enhancements
Incompatible Changes
Bug Fixes
maxtoa#735 ARV: crash when lights are instanced with missing .ies file
maxtoa#749 ActiveShade refreshes after saving the scene
maxtoa#755 ARV: crash with tyFlow and procedurals
maxtoa#779 ARV/AS: crash when using Undo/Redo on node creation/selection/deletion
maxtoa#801 ARV: "Start IPR" button has wrong initial tooltip
maxtoa#815 ARV/AS: tyFlow instances do not inherit the material
maxtoa#819 Arnold menus duplicated in Customize User Interface menu list
maxtoa#820 Crash exporting physical material with displacement to .ass file
maxtoa#826 ARV: Optix Denoiser ignored for both prod and IPR
maxtoa#842 USD viewport display crashes when geometry has polygons with nb of sides > 32
maxtoa#855 Incorrect ASinVP with Camera and Safe Frame active at the sides of the view
maxtoa#870 ARV/AS ghosting when copying an object
maxtoa#880 ARV-IPR crashes with HDRI OSL in Imagers slot
maxtoa#887 ARV: Rendering with safe frames does not give correct results
maxtoa#890 Crash using Arnold Denoiser and ARV
maxtoa#891 Arnold cannot render Tyflow cloth particles