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HtoA 6.3.2.1 - Arnold for Houdini

19 June 2024

HtoA 6.3.2.1 is minor feature release using Arnold 7.3.2.1.

Installation

  • Download Arnold for Houdini from your Autodesk Account. See Download Arnold for more information about downloading HtoA from your Autodesk Account.

  • Follow these installation instructions

Bug Fixes

  • HTOA-2610 - Fixed 'unresolved reference' errors when instancing multiple packed primitives

  • HTOA-2606 - Fixed incorrect motion blur on .ass instances

  • ARNOLD-14365 - Fix AiNodeGetMatrix to return node matrix instead of identity after node initialization in batch renders

  • ARNOLD-14779 - AtProfiledLockable not compiling on Windows in newer MSVC due to Mutex::native_handle_type

  • ARNOLD-14893 - [GPU] 4MB GPU memory leak per frame

  • ARNOLD-15041 - Arnold does not run on Linux distros with glibc 2.39 (RHEL 9.4)

  • ARNOLD-15048 - Fix OIDN dll name clash with DCCs by renaming OIDN libraries

  • ARNOLD-15060 - Arnold should not catch C++ exceptions it did not generate

  • ARNOLD-15087 - uv_projection shader uses corrupt UVs for evaluating its default_color shader

  • ARNOLD-15121 - [GPU] crash when CUDA error has no message

  • ARNOLD-15122 - Crash destroying a light that is part of a light group

  • ARNOLD-15136 - Random hang when parallel initializing scene

  • ARNOLD-15169 - Crash when modifying a child node from procedural_update

  • usd#1923 - Fix instance primvar indices with multiple prototypes

  • usd#1929 - Ensure subdiv_iterations is not set unnecessarily during procedural updates

  • usd#1932 - Fix a crash when the number of elements in a primvar is not equal to the number of points

System Requirements

  • Houdini, Houdini FX, Houdini Indie and Houdini Education
    • 19.0.720
    • 19.5.805
    • 20.0.724
  • Linux with at least glibc 2.28 and libstdc++ 9.3.1 (gcc 9.3.1) for Houdini 19, 19.5, and 20. This is equivalent to RHEL/CentOS 7.
  • Linux with at least glibc 2.17 and libstdc++ 11.2.1 (gcc 11.2.1) for Houdini 20. This is equivalent to Rocky 8.
  • macOS 10.13 or later, macOS 11 or later for Houdini 19.5
  • Apple Mac models with M series chips:
    • Natively supported by Arnold for Houdini 19.5
    • Supported under Rosetta 2 mode for older versions of Houdini
  • x86-64 CPUs need to support the SSE4.1 instruction set. Apple Mac models with M series chip are supported natively mode.
  • GPU rendering works on Windows and Linux only and requires an NVIDIA GPU with the Maxwell architecture or later.
  • Optix™ denoiser requires an NVidia GPU with CUDA™ Compute Capability 5.0 and above.

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