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Sept 17th 2019


This is a feature release bringing IPR improvements.

Important information about Arnold GPU (beta)


  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:

  • 16.5.634
  • 17.0.506
  • 17.5.327
  • 17.5.360

and for the following platforms:

  • Linux x86_64 (H16: gcc4.8 and H17: gcc6.3)
  • Windows 7 x64 (H16: vc14 and H17: vc14.1)
  • Mac OS X 10.8+ (clang7.3)


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


  • Rewrite hick with new render API (htoa#663)

  • IPR for displacement shader graphs (htoa#1291)
  • Translate scene in separate universe (htoa#1284)


  • Update alembic transform in IPR (htoa#1290)

  • IPR shader update should respect the Auto Update status (htoa#1289)

  • Allow referencing OBJ nodes with trailing slash on arnold ROP (htoa#1297)

  • Fix load warnings for arnold_volume node (htoa#1282)


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


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