HtoA 6.2.5.2

13 February 2024

HtoA 6.2.5.2 is a bugfix release using Arnold 7.2.5.2.

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-2413 - Fixed scene creation time slowdown in Solaris.

• HTOA-2474 - Fixed SOP VDB -> translation for Solaris (Cannot load htoa_pygeo library)

• ARNOLD-9734 - Cache and texture flush requests were ignored

• ARNOLD-14660 - Crash changing imager parameter after disconnecting from driver

• ARNOLD-14644 - Autobump goes away at extreme magnification

• ARNOLD-14287 - Rare crash when compiling OSL shaders during IPR

• ARNOLD-14650 - [GPU] OptiX denoiser renders black when using more than one GPU

• ARNOLD-14631 - [GPU] Random crash with textures

• ARNOLD-10216 - [GPU] Log should report why a GPU is not matching requirements

• usd#1812 - Fix a startup time regression introduced in 7.2.4.0.

• usd#1753 - Fix a problem with Yeti where the transforms of the ArnoldProceduralCustom were not taken into account in kick and USD procedural.

System Requirements

• Houdini, Houdini FX, Houdini Indie, and Houdini Education
  • 19.0.720
  • 19.5.805
  • 20.0.590
• Linux with at least glibc 2.28 and libstdc++ 9.3.1 (gcc 9.3.1) for Houdini 19, 19.5, and 20. 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. 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 of the Ada, Ampere, Turing, Volta, Pascal, or Maxwell architecture. We recommend using the 535.104 or higher drivers on Linux and 537.13, or higher on Windows. See Arnold GPU for more information.
• Optix™ denoiser requires an NVidia GPU with CUDA™ Compute Capability 5.0 and above.