Houdini Main Changelogs

22.0.451

Fixed a harmless "GLD_TXTURE_INDEX_2D is unloadable" Apple OpenGL warning that occurred at Houdini startup on macOS.

昨日
21.0.847

Persist the "Disable color correction" toggle in the color editor across sessions.

昨日
22.0.451
  • Reduced the time it takes to startup the animate caching thread in theAPEX Animate state to less than 1ms.
  • Fixed a bug where the APEX Animate caching thread would startup at thestart of playback if there was a pending key.
昨日
22.0.451

Improved the speed of the APEX Animate state when scrubbing the playbar.

昨日
22.0.451

Fixed a bug with hserver where it was caching dynamic discoverd settings like DNS server settings which caused hserver to stay on that sticked setting instead of discovering the new value.

昨日
22.0.451

Fixed a bug in the UV Flatten from Points SOP that could result in a crash after a cook failure.

昨日
22.0.451

HUSD_PointInstancer::copyUsdAttrsToGeoAttrs now takes an additional 'is_time_varying' paramater to track whether or not the SOP needs to be marked as Time Dependent. HUSD_PointInstancerSampleData::accumulate was also updated to use HUSD_ProtoResolution to help track prototype information, such as resolved prototype index from string matching, etc.

昨日
22.0.451

Fixed issues with the Insert Quick Material menu in the Material Linker LOP.

昨日
22.0.451

Fixed a faulty warning message, which was displayed in the log when running ML Train Gsplats, where it claimed it couldn't find the image path. Functionally nothing changed.

昨日
22.0.451

Fixed a bug in the Neural Layer to Mask (SAM2) COP, where toggling on proxy mode caused the node to error as it was expecting fixed 1024x1024 input size.

昨日
22.0.450

Fixed a bug where the geometry inputs for a modifier HDA were always being disabled and greyed out. Now only the first input will be disabled because it is reserved for the object that the modifier is applied to.

月. 9月 21, 2026
22.0.450

Fixed the Houdini PyImath libraries so that they have a custom "_sidefx" suffix in their library names. This helps avoid conflicts with system PyImath libraries.

月. 9月 21, 2026
22.0.450

Fixed an issue with hkey where preferences required a restart.

月. 9月 21, 2026
22.0.450

Unify the use of the term "Data Set" in parameter labels of ML Train Neural Cellular Automata and ML Preprocess/Train GSplats TOP nodes replacing the previous "Dataset".

月. 9月 21, 2026
22.0.450

Added clearer error message to ML Train Gsplats logs, when detecting GPU architectures incompatible with installed PyTorch or CUDA versions.

月. 9月 21, 2026
22.0.450

Fixed a case where Cage Ray Directions were producing suboptimal bake results in certain cases on Bake Pre-Process COP and SOP.

月. 9月 21, 2026
22.0.450

Fixed a bug in the glTF importer where it mapped the specular color factor in materials to generic 1,2,3 channel names instead of the Houdini r,g,b color channel names.

月. 9月 21, 2026
22.0.450

Fixed a critical bug on Bake Geometry Textures COP where tangent normal frame was constructed using Cage Normals, not Low Resolution Normals. This will fix previous errors in the tangent normal map.

月. 9月 21, 2026
22.0.450

Fixed a bug in the glTF importer where it mapped the specular color factor in materials to generic 1,2,3 channel names instead of the Houdini r,g,b color channel names.

月. 9月 21, 2026
22.0.450

Introduced new parameters for controls over the Ray Directions on the Cage Mesh on Bake-Pre Process COP and SOP, which by default sets their directions to their topological match on the Low-Resolution.

月. 9月 21, 2026
22.0.450

Fixed a bug where ML Train Gsplats failed when running on multi-GPU linux systems.

月. 9月 21, 2026
22.0.450

Added support for the glTF diffuse alpha, occlusion texture strength and normal texture scale material properties to the Mtlx glTF Material.

月. 9月 21, 2026
22.0.450

Refactored ML Train Neural Cellular Automata TOP hutil training scripts; no user-facing behavior change.

月. 9月 21, 2026
22.0.450

Backported doc update - Edit LOP's edit-retargeting instructions and removed unused parm details.

月. 9月 21, 2026
22.0.450

Backported updates for RFE 156531 Added files for Re-target Transforms pane in Edit LOP. Updates to enable Re-target Transforms pane in Edit LOP Added button delete edits with incorrect paths Added button to remove all unused edits Removed refresh button and added a callback to refresh when delta parm is edited Added undos for all ops

月. 9月 21, 2026