HtoA 6.3.5.1

11 Nov 2024

HtoA 6.3.5.1 as a bugfix release that uses Arnold 7.3.5.0.

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

HTOA-2517 - Added a warning if the HtoA HDK API version doesn't match the Houdini API HDK version For example, i you use HtoA for Houdini 20.5.370 with Houdini 20.5.410, this warning would be printed because the HDK API was changed:
- An HtoA release for an older HDK version may still work in newer Houdini production builds.
- If a warning isn't printed, then that means HtoA is binary compatible with your Houdini version and you shouldn't need to worry about crashes or instability.
- There will still be a HtoA build when a new Houdini production build is available. This is just a plugin stability sanity check if you need to use an older HtoA build in the newer Houdini while you wait for a new HtoA release.
HTOA-2762 - Cryptomatte metadata is now saved correctly when using the raster product type in Houdini 20.5.410 or newer. Note: In Houdini 20, you must currently use the latest daily build to take advantage of this fix.

Houdini, Houdini FX, Houdini Indie and Houdini Education
- 19.5.805
- 20.0.751
- 20.0.896
- 20.5.410
Linux with at least glibc 2.28 and libstdc++ 9.3.1 (gcc 9.3.1) for Houdini 19.5, 20 and 20.5. 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 20/20.5. This is equivalent to Rocky 8.
macOS 11 or later
Apple Mac models with M series chips are natively supported by HtoA
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.
- On Linux, we recommend 535.104 or higher drivers.
- On Windows, we recommend 537.13 or higher drivers.
Optix™ denoiser requires an NVidia GPU with CUDA™ Compute Capability 5.0 and above.
Intel OIDN GPU support is limited to:
- MacOS
  - Apple native CPUs (M1 and newer)
- Windows
  - Intel Xe dedicated and integrated GPUs
  - NVIDIA GPUs using Turing or newer architectures
  - AMD GPUs with RDNA2 (Navi 21 only) and RDNA3 (Navi 3x) architectures