HtoA 6.0.2.1 - Arnold for Houdini

01 Feb 2022

HtoA 6.0.2.1 is a bug fix release using Arnold 7.0.0.2 .

Please download the .py3 version of the HtoA installer when installing the Python 3 versions of Houdini.

Installation

System Requirements

Houdini, Houdini FX, Houdini Indie and Houdini Education
- 18.0.597
- 18.5.759
- 19.0.498
- 19.0.531
Windows 10 or later, with the Visual Studio 2019 redistributable.
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 .
CPUs need to support the SSE4.1 instruction set. Apple Mac models with M series chip are supported under Rosetta 2 mode.
GPU rendering works on Windows and Linux only and requires an NVIDIA GPU of the Ampere, Turing, Volta, Pascal, or Maxwell architecture. We recommend using the 470.74 or higher drivers on Linux and 472.12 (Quadro), 472.12 (GeForce) , or higher on Windows. See Arnold GPU for more information.
Optix™ denoiser requires an NVidia GPU with CUDA™ Compute Capability 5.0 and above.

htoa#1874 Husk loads hdArnold.so on Linux in Houdini 19.
htoa#1895 Update Arnold ROP onCreate script for python 3.
htoa#1897 Set the colorspace of image nodes with tx files to the render colorspace.
htoa#1898 Fix to hush startup log if the HTOA_STARTUP_LOG env is set to 0
htoa#1906 Ship OSL include files
htoa#1393 Propagate exr autocrop option to AOVs
ARNOLD-11890 - Crash with overlapping dielectrics using the same priority with only one using an interior closure
ARNOLD-11728 - Performance regression on some scenes introduced in Arnold 7.0.0.0
ARNOLD-11282 - Curve face index assignment to 0xFFFFFFFF causing crashes
ARNOLD-11875 - [GPU] Disabling lights interactively only works once
ARNOLD-11844 - [GPU] Error when interactively loading scenes with an atmosphere
ARNOLD-11782 - [GPU] Crash with empty grids in OpenVDB files
usd#933 Set Product Metadata
usd#953 AiMsgSet functions need to be called with a render session
usd#941 Avoid linking with hdx for older USD versions
usd#951 AiResolvePath is not called with a procedural file type
usd#962 Support building arnold-usd against USD 21.11