Houdini Main Changelogs
| 21.0.735 | Updated the USD library to incorporate a number of fixes related to rendering USD scenes:
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Tue. June 2, 2026 | |
| 21.0.735 | Fixed faceting issue with COP Preview Material in non MikkT mode where the material was incorrectly overwriting the input geometry normal attribute that caused the faceting issue. |
Tue. June 2, 2026 | |
| 21.0.734 | Updated the ZibraVDBForHoudini plugin to v1.3.3.0. This adds support for Solaris workflows including a new LOP ZibraVDB Import node to bring ZibraVDB volumes directly into the LOP network, a ZibraVDB USD Asset Resolver which decompresses ZibraVDB grids into OpenVDB on the fly, and a ZibraVDB Output Processor which links imported ZibraVDB files into a USD file on export (using the USD ROP node). |
Mon. June 1, 2026 | |
| 21.0.734 | Add getVKProjectionMatrix() function to GR_Uniforms, to get the projection matrix with GL-to-VK correction applied |
Mon. June 1, 2026 | |
| 21.0.731 | Fixed bug where applying preferences dirtied the current session. |
Fri. May 29, 2026 | |
| 20.5.979 | Fixed an HQueue bug where the client failed to send job output to the server if the output contained a character prohibited by the XML RPC specification. |
Fri. May 29, 2026 | |
| 21.0.731 | Fixed an HQueue bug where the client failed to send job output to the server if the output contained a character prohibited by the XML RPC specification. |
Fri. May 29, 2026 | |
| 20.5.979 | Fix python exception about RebuildException. |
Fri. May 29, 2026 | |
| 21.0.731 | Fixed crash in the Attribute Copy SOP when using vertex groups with no vertices. |
Fri. May 29, 2026 | |
| 21.0.730 | Fixed double-clicking behaviour in the animation editor.
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Thu. May 28, 2026 | |
| 21.0.729 | Otis Muscle and Tissue Configure SOP now has warnings if your incoming muscle or tissue geometry has a `tiny_tets` group. |
Wed. May 27, 2026 | |
| 21.0.729 | Fixed a bug in Otis Muscle and Tissue Configure SOP where targetshapes were blended with the starting position of muscles instead of the tpose. This bug was most evident if the starting position was rotated 180 degrees relative to the t-pose. Any Otis simulation utilising target shapes with the starting position transformed from tpose will have different results to before. |
Wed. May 27, 2026 | |
| 21.0.729 | Fixed potential errors drawing curve guide geos after hiding a node and making it visible again, due to an incomplete update |
Wed. May 27, 2026 | |
| 21.0.728 | Fixed a bug in Poly Split 2.0 SOP where vertex UV attributes become distorted where polygons are split. |
Tue. May 26, 2026 | |
| 20.5.976 | Fixed a bug in Poly Split 2.0 SOP where vertex UV attributes become distorted where polygons are split. |
Tue. May 26, 2026 | |
| 20.5.976 | Fixed a bug in Poly Split 2.0 SOP where vertex UV attributes become distorted where polygons are split. |
Tue. May 26, 2026 | |
| 21.0.728 | Fixed a bug in Poly Split 2.0 SOP where vertex UV attributes become distorted where polygons are split. |
Tue. May 26, 2026 | |
| 21.0.727 | Fixed potential errors drawing curves after hiding a node and making it visible again, due to an incomplete update |
Mon. May 25, 2026 | |
| 21.0.727 | Fixed a random garbage collecion bug when using the PDG Aync Importer. |
Mon. May 25, 2026 | |
| 21.0.727 | Changed the way the plugin finds the Unreal executable to run for the PDG Commandlet. Potentially fixes some issues in custom source builds. |
Mon. May 25, 2026 | |
| 21.0.727 | Added support for recentering baked landscapes. |
Mon. May 25, 2026 | |
| 21.0.727 | Added support for setting Unreal properties on Geometry Collections. |
Mon. May 25, 2026 | |
| 21.0.727 | Fixed an issue where the rebook input buttons would not correctly for meshes. |
Mon. May 25, 2026 | |
| 21.0.727 | Fixed a bug where Karma Fog Box LOP produced undefined results in render when 'Noise' toggle is enabled. |
Mon. May 25, 2026 | |
| 21.0.727 | Fixed a bug where Karma Fog Box LOP produced undefined results in render when 'Noise' toggle is enabled. |
Mon. May 25, 2026 |