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 rendering packed USD geometry within the geometry context.
Fixes
- Fixed a crash when merging vdbs
- Fixed a bug where primvars are dropped when material is applied on SOP
- Fixed an issue preventing render updates for keyframed parameters on light shaders
- Fixed an issue that would prevent a interactive render from stopping if an abort was issues in the "it" display
- Fixed an issue that was causing the IPR Render shelf tool to read the ROP display rather than always starting an IPR session via MPlay or "it"
- Fixed a bug that could cause Pixel Filter mode to remain pinned to "importance"
- Fixed a bug that would cause interactive rendering to crash when modifying materials or the timeline
- Packed Geometry:
- Fixed a bug where unpacked primitive geometry would not get material attribute applied
- Fixed a bug where velocity motion blur was not applied when packed SOP was not time-dependent
- Fixed some motion blur bugs with packed geo
- We now export packed alembic string attributes as user attributes
- Instancing:
- Fixed an issue to more closely match Mantra behavior when ptinstance = off
- Fixed a crash when instances would be created from points out of a POP or DOP node
- Numerous other bugs when using instancing have been addressed
- Preset Browser:
- 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
- Address an issue when the preset browser would not import material assets with textures correctly
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
- Parameters with unknown widget types still being added to hda with a default UI.
Known Issues
- Display edits cannot bechanged 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