2 May 2016

This is bugfix release, with an updated curvature shader and OpenVDB.

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

This release uses Arnold and OpenVDB 3.1.0.

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

  • 15.0.459
  • 15.0.416
  • 15.0.393

and for the following platforms:

  • Linux x86_64 (gcc4.8)
  • Windows 7 x64 (vc11)
  • Mac OS X 10.8+

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

  • Curvature shader: Added threshold parameter to cull out curvature samples below a certain angle. The threshold is normalized from 0° to 180°. This allows to remove the geometry "bubbles" while having a sane default of 0 to avoid flickering on 90° edges (csp#92)
  • OpenVDB: Updated OpenVDB version to 3.1.0 (htoa#767)
  • OpenVDB: Added support for filedata byte array parameter to read VDBs directly from memory on the volume node (core#5253).
  • Exception when exporting .ass files in batch mode (htoa#765)

  • Do not create intermediate directories when exporting an .ass file and the drivers are filtered out (htoa#765)
  • Shell box popping with AutoTX on Windows (htoa#768)

  • Deleting Fetch VOP node crashes Houdini (htoa#773)
  • Offset the world space position (sg->P) in volume_collector when displacing (csp#95)

  • Fix uninitialized forced phantom bundle name causing issues with smart bundles (htoa#774)
  • Fix incorrect OpenVDB volume motion blur bounds for constant velocity (htoa#763)

  • Bogus motion blur and placement of instances when a rot attribute is present (htoa#775)

  • Tooltip exception when hovering Arnold shelf tools (htoa#769)
  • Memory corruption with instance point deformation motion blur (htoa#779)
  • Forced phantom not working on instances (htoa#695)
  • Empirical SSS profile rendering incorrectly with low radius (core#5216)
  • Matte object AOV filtering wrong with deep EXR (core#5217)

  • Poorly scaling codepath in catclark subdivision (core#5227)

  • alHair transmission component incorrect (core#5233)

  • Expand environment variables for volume.dso (core#5234)

  • Surface samples should merge when inside a volume (core#5240)

  • 2-second timeout when (failing) broadcasting RLM servers (core#4534)

  • SSE4.2 not always correctly detected (core#5228)

  • Metadata files don't allow 'RGB' as attribute or metadata name (core#5239)

  • Proc inheritance not respected for bump shaders (core#5256)

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

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