MAXtoA 5.3.0 is a minor feature release, updating to Arnold 7.1.2.0

Installation

  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.

USD Enhancements

  • Mesh Lights: Geometry lights are now supported in the render delegate (usd#1080)
  • Color Management: When a usd file is loaded, the color manager node is set based on render settings parameters (usd#946  usd#1042) 
  • Motion Blur from Render Settings: A usd scene with Render Settings primitive can be rendered with motion blur (usd#1089) 
  • Varying topologies and motion blur: Support velocity motion blur on geometries with varying topologies (mesh, curves, points) on both the procedural and the render delegate (usd#1090)
  • Support arnold primvars in instances: When an instancer has a primvar for an arnold builtin attribute (e.g. matte), we now propagate it to its instances (usd#1100)
  • Support UsdPreviewSurface displacement output: scenes where UsdPreviewSurface is used as a displacement shader, through its attribute displacement are now supported. This is needed to render the Alab scenes (usd#1130)
  • Support light linking on instances: We can now support setting a point instancer, or an instanceable prim, in light linking (usd#1128)
  • Optimize nested instances in the render delegate: The memory consumption for nested instances (point instancer having another point instancer as a prototype) has reduced dramatically in Hydra (usd#1124)
  • Render NurbsCurves as UsdGeomCurves: Usd Nurbs Curves were previously ignored by Arnold. They are now rendered as basic UsdGeomCurves (usd#1120)
  • Support instanceable prims with variant overrides: It is now possible to render an instanceable prim referencing another primitive, and override its variants (usd#1127)
  • Support per-instance velocity blur: The Arnold render delegate now supports point instancers with varying amount of instances, where it's the velocity blur that drives motion blur  (usd#1092)
  • Usd Writer reuses eventual existing material primitives: This is needed for MayaUsd exports, so that the original mayaUsd material is kept, and Arnold shaders are assigned in the "arnold" context (usd#1139)
  • Support shader connections to lights in Hydra: Using an ArnoldNodeGraph primitive, the Arnold render delegate now supports connecting arbitrary shading trees to light's colors (usd#1141)
  • Support lights filters in Hydra: Similarly to shader connections, arnold light filters (gobo, etc...) can now be assigned to lights, through an ArnoldNodeGraph primitive (usd#1141)
  • Improve shader dependency graph in the render delegate: The tracking of shader connections (for materials, lights, light filters, etc...) is now more robust, and fixes crashes when disconnecting or reconnecting shaders  (usd#1158)


Incompatible Changes

  • Connection priority in MaterialX document:  Setting both a value and a connection as input of a node is undefined behavior in MaterialX. Arnold will now prioritize the connection over the value when both are defined. (ARNOLD-11198).

Bug Fixes

  • Volume in viewport : not possible to switch from bounding box mode, combo is greyed out (MAXTOA-1401)

  • ARNOLD-12299 - Crash when writing .ass file expanding procs without a render session
  • ARNOLD-12232 - Memory leak when rendering deep EXR layers
  • ARNOLD-11809 - Random crash when rendering multiple scenes in parallel
  • ARNOLD-12211 - [GPU] Optix denoiser memory leak when creating and destroying render sessions successively
  • ARNOLD-12177 - [GPU] Crash with ramp shader after aborting due to an error
  • ARNOLD-12166 - [GPU] Texture memory leak when creating and destroying render sessions successively
  • ARNOLD-12165 - [GPU] Incorrect volume bounds
  • ARNOLD-357     - [Licensing] Licensing error "[clm.v1] product key not found
  • ARNOLD-12144 - [maketx] Unwanted log messages
  • ARNOLD-12171 - [MaterialX] Crash when exporting a volume shader to MaterialX
  • ARNOLD-11198 - [MaterialX] Connection is ignored when a node input also has a defined value
  • usd#1073 Resolve node attributes from referenced files
  • usd#1093 Fix instanceable references in the same USD file
  • usd#1104 Compute visibility until the eventual root prim
  • usd#1129 Support UsdUvTexture relative paths with udims 
  • usd#1133 Set outputs layer names only if required 
  • usd#1136 Fix uninitialized UV coords with leftHanded meshes 


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