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This is a fork of Robotika's PRT ROP to keep up with the latest Houdini version and changes.

In most cases going with Alembic is probably the easier solution, but there are still a few cases and workflows that require PRT files. So, hopefully, this will be useful to you.

Please note: since I personally rarely use PRT any more, not a lot of testing goes into these builds. They come "as is" - please open an Issue if there are, well, issues, and I'll see what I can do.

Original Readme:

PRT ROP For Houdini

Brought to you by Robotika ( and Fiction


To build :

  • Clone this repo
  • Open houdini Command Line Tools
  • cd to this folder
  • call hcustom -I "C:\Program Files\Microsoft SDKs\Windows\v6.0A\Include" -I "C:\Program Files\Side Effects Software\Houdini 12.1.125\toolkit\include\zlib" -I "C:\Program Files\Side Effects Software\Houdini 12.1.125\toolkit\include\OpenEXR" PRT_RopDriver.cpp


To use compiled version (12.185) :

  • Clone this repo
  • Checkout "compiled" branch
  • Copy PRT_RopDriver.dll to Houdini DSO folder