HtoA 2.1.5

23 October 2017

This is a bug fix release, fixing an issue with the AOV EXR output precision on the Arnold ROP.

  1. Get the install files on Solid Angle Downloads.
  2. Follow these installation instructions.

This release uses Arnold and OpenVDB 4.0.0.

Binaries available for the following Houdini, Houdini FX, Houdini Indie and Houdini Education production builds:

  • 16.0.671
  • 16.0.705
  • 16.0.736


and for the following platforms:

  • Linux x86_64 (gcc4.8)
  • Windows 7 x64 (vc14)
  • Mac OS X 10.8+ (clang7.3)


Please note that Houdini Apprentice does not support third-party renderers and thus cannot run HtoA.

  • AOV EXR Precision Output bug fix (htoa#948)

  • Crash when removing a procedural node (core#6242)

  • Removed crash when destroying trace_set shader (core#6254)

  • sss_irradiance_shader no longer fails with closure-based shaders (core#6255)

  • Crash fixed when connecting a volume shader as an atmosphere shader (core#6286)

  • Miscellaneous crashes fixed (empty NURBS, empty implicit, atmosphere shadow_matte) (core#6288)

  • driver_deepexr driver append fixed with overscan renders (core#6293)

  • Crash when saving empty ginstance with open_procs enabled (core#6295)

  • Camera differential evaluation crashes and hangs fixed for OSL shaders linked to camera (core#6297)

  • The range shader no longer occasionally outputs infinite or nan floats (core#6258)


See also the Arnold release notes for the full list of core enhancements and fixes.


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