HtoA 6.3.7.1
2 April 2025
HtoA 6.3.7.1 is a bugfix release that uses Arnold 7.3.7.1. For the full list of features in HtoA 6.3.7, see the HtoA 6.3.7 release notes.
Installation
Bug Fixes
- ARNOLD-14467 - Random GPU crash during JIT compilation
- ARNOLD-15983 - OpenEXR DWAA float textures read incorrectly
- ARNOLD-15985 - [MaterialX] Parameter with "defaultgeomprop" attribute set overrides connection
- ARNOLD-15986 - [MaterialX] Crash when node with the same name exists inside a nodegraph
- ARNOLD-15993 - Raw drivers receiving incorrect number of samples
- ARNOLD-16041 - [MaterialX] connections to named nodegraph outputs do not work
- ARNOLD-16050 - [MaterialX] ND_mix_surfaceshader renders black when assigned from materialx operator
- ARNOLD-16053 - Triplanar produces artifacts on GPU with some NVIDIA drivers
System Requirements
- Houdini, Houdini FX, Houdini Indie and Houdini Education
- 19.5.805
- 20.0.896
- 20.5.550
- 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.
- 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