This is a bug fix release, fixing issues in Solaris and the USD procedural.


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


This release uses Arnold, OpenVDB 4.0.0 and Arnold-USD (4e5175c).


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

  • 17.0.506
  • 17.5.460
  • 18.0.391

and for the following platforms:

  • Linux x86_64 (gcc6.3)
  • Windows 7 x64 (vc14.1)
  • Mac OS X 10.11+ (clang7.3)


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


  • #1400 Crash creating render settings LOP
  • #1358 Fix to translate fetch nodes in
  • #1394 Support per-point attributes in usd procedural
  • #1396 Install hydra render delegate to dso/usd_plugins
  • #1403 Support generic shaders as materials in solaris  
  • usd#222 Per-vertex UV coordinates causing errors

  • usd#247 Incorrect width to radius translation in the procedural

  • usd#228 Varying user data is now supported on points nodes

  • usd#239 BasisCurves are now supported

  • usd#211 Procedural fix to read shader output connections correctly

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


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