Contents
Welcome to RenderMan for Houdini 23.3!
This release of RenderMan for Houdini 23 (RfH), includes a number of new features and bug fixes that address feedback.
- Please see the required version of Houdini for 17.5 and 18.0
- Rendering with RenderMan will not operate on Houdini Apprentice editions, see Side FX's website for options that allow Third Party Rendering
- Houdini Indie is only compatible with 17.5 and higher, and you must be using at least version 17.5.210 or higher
New Features in 23.3
RenderMan for Houdini now supports packed USD primitive geometry nodes
Fixes
Fixed an issue with parameters with unknown widget types still being added to hda
- Fix a bug that would cause interactive rendering to crash when modifying materials or the timeline
- Fixed a crash when merging vdbs
- Fixed logging bug when using the preset browser with textures
- A bug causing importing and exporting shader networks with PxrOSL shaders to the preset browser has been fixed
- A bug causing importing and exporting nodes with arrays to the preset browser has been fixed
- We now export packed alembic string attributes as customer user attributes
- Numerous bugs and crashes when using instancing have been addressed
- Address an issue when the preset browser would not import material assets with textures correctly
- Fixed a bug where primvars are dropped when material is applied on SOP
- Fixed some motion blur bugs with packed geo
- Fixed a bug that could cause Pixel Filter mode to remain pinned to "importance"
- Fixed a bug where velocity motion blur was not applied when packed SOP was not time-dependent
- Fixed a bug where unpacked primitive geometry would not get material attribute applied
- Fixed an issue to more closely match Mantra behavior when ptinstance = off
Miscellaneous Changes
Renamed Houdini velocity privmars called "v" to "vel"; as "v" is a reserved attribute for RenderMan geometry. Shaders in RenderMan for Houdini should refer to "vel" instead of "v".
Bxdf output type changed to surface to allow Bxdf inputs
- oslbuilder now shows up in PxrMaterialBuilder
- Added support for ptmotionblur="deform" on Instance OBJ
- Added RFH_USER_LOG_DIR, RFH_USER_OTLS_DIR, RFH_USER_PREF_DIR
- Reorganized ROP for illumination baking options
- The "darkfalloff" option has been added back to the adaptive sampling options
- Added biasR, biasT, rawId, and dPcameradtime AOVs to LOPs, ROPs, and TOPs
Known Issues
- Display edits cannot changed from the image tool to mplay
- Cross-frame denoising pdg support
- Phantom objects are removed from all rays, not just camera rays
- Applying undo of deleted nodes or collapsing to subnet may not work as expected
- Rewiring subnet indirect inputs
Known Limitations
- Rendering with Mantra lights or VOPs not possible
- Bypassing shader nodes
- Auto camera creation for IPR
- RenderMan clipping planes