HtoA 6.3.4.1 - Arnold for Houdini
18 September 2024
HtoA 6.3.4.1 is a bugfix release that uses Arnold 7.3.4.1.
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-2731 - Arnold Render Settings now puts RGBA at the top of the list of ordered render vars, so it is the default viewport AOV
- HTOA-2734 - Added more error logging to "driver_houdini" if it fails to communicate with mplay, as part of an ongoing effort to improve the debugging experience when the render view is silently failing
- ARNOLD-14289 - Crash when interactively removing operator nodes
- ARNOLD-15406 - [GPU] Uninitialized memory causing random crashes
- ARNOLD-15437 - open_pbr_surface was not supported in arnold MaterialX implementation
- ARNOLD-15445 - [GPU] Crash with multiple GPUs
- ARNOLD-15465 - Setting IOR to high values in OpenPBR causes NaNs
- usd#2090 - Fixed crashes when registering the TfNotice callback multiple times
System Requirements
- Houdini, Houdini FX, Houdini Indie and Houdini Education
- 19.5.805
- 20.0.751
- 20.5.332
- 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 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.
- 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
- MacOS