HtoA 6.2.4.2

10 November 2023

HtoA 6.2.4.2 uses Arnold 7.2.4.1 and adds support for Houdini 20.

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

OSL VOP - UI and stability improvements The snippet parm has been improved with syntax highlighting and compilation errors are now highlighted.

HTOA-2275 - Fixed crashes when OSL VOP compilation fails
HTOA-2414/ARNOLD-14009 - Bucket size and similar parameters missing in Arnold Render Settings LOP

Houdini, Houdini FX, Houdini Indie and Houdini Education
- 19.0.720
- 19.5.773
- 20.0.506
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, 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 of the Ada, Ampere, Turing, Volta, Pascal, or Maxwell architecture. We recommend using the 525.89 or higher drivers on Linux and 528.49, or higher on Windows. See Arnold GPU for more information.
For GPU rendering, the cache also needs 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.
Optix™ denoiser requires an NVidia GPU with CUDA™ Compute Capability 5.0 and above.