Houdini Main Changelogs

20.5.725

Fixed a bug where per-point or vertex boolean primvars on subd mesh would evaluate incorrectly when read using geomprop reader, and potentially cause XPU to crash upon initialization.

Wed. September 17, 2025
21.0.477

Fixed a bug where per-point or vertex boolean primvars on subd mesh would evaluate incorrectly when read using geomprop reader, and potentially cause XPU to crash upon initialization.

Wed. September 17, 2025
20.5.725

XPU: Fixed a bug where geomprop reader for integer primvar on subd or displaced mesh would return garbage values.

Wed. September 17, 2025
21.0.477

XPU: Fixed a bug where geomprop reader for integer primvar on subd or displaced mesh would return garbage values.

Wed. September 17, 2025
20.5.725

HoudiniVK now responds to changes in a primitive's purpose in LOPs.

Wed. September 17, 2025
21.0.477

HoudiniVK now responds to changes in a primitive's purpose in LOPs.

Wed. September 17, 2025
21.0.477

Fixed hcustom on Windows to once again work for building USD plugins with the `-U` flag.

Wed. September 17, 2025
21.0.477

Fixed a bug in the APEX Animate viewer state where the motion path could evaluate incorrectly after moving a key, binding it to another control, then moving another key. Fixed another bug in the APEX Animate viewer state where a "Controls not added to active layer!" message would appear after moving a control on the motion path while a layer other than the base layer was active.

Wed. September 17, 2025
21.0.477

Fixed a crash caused by trying to re-order the instances in a locked multiparm.

Wed. September 17, 2025
21.0.477

Fixed an issue where the Cop Path parameter of the Image ROP would be disabled when the node had an input.

Wed. September 17, 2025
21.0.477

Fixed helpcard for Karma Pyro Fire Color VOP's "Color Mode" parameter.

Wed. September 17, 2025
21.0.477

Add support for constructing FloatRamp and ColorRamp constants in APEX Script.

Wed. September 17, 2025
21.0.477

Allow geomprop reader to use primvar named 'Ce' in karma CPU. Previously this prevented shader from compiling due to conflict with existing shader global.

Wed. September 17, 2025
21.0.477

Fixed APEX Scene Add Animation and APEX Scene Copy Animation to avoid creating packed folder files with spaces in the paths. If a path has a space, APEX Path Patterns can't be used to select a file even with the full path because the space character is the pattern separator.

Wed. September 17, 2025
21.0.477

Fixed a bug in the APEX Animate viewer state where changing parameters on upstream nodes would cause the geometry to flicker or disappear.

Wed. September 17, 2025
21.0.477

Fixed a bug in the animation graph editor where there were sometimes visual noise surrounding text.

Wed. September 17, 2025
21.0.476

SDF VDBs and Volumes will update in the Vulkan viewport even if only the primitives changes, such as with an OpenCL SOP.

Tue. September 16, 2025
20.5.724

Fixed a bug in the RBD Guide Setup SOP which would capture the wrong __orient on packed prims.

Tue. September 16, 2025
20.5.724

Bumped the HDK ABI version due to changes in RV that affect ABI compatibility

Tue. September 16, 2025
20.5.724

Reduce overhead of loading textures when the Vulkan viewport is active

Tue. September 16, 2025
21.0.476

Fix a MotionMixer crash when switching the Output mode from 'Animation Clips' to 'Shapes'. There was a bug in the way the Packed Folders file map was cleared.

Tue. September 16, 2025
21.0.476

Fixed a bug where the APEX Animate state would endlessly throw errors if a constrained control was baked while one of the constraint's controls were selected.

Tue. September 16, 2025
21.0.476

When Initializing Parameter from a USD Prim, empty relationships on the prim no longer raise a python exception.

Tue. September 16, 2025
21.0.476

Fixed a bug where deleted Animation Catalog folders would reappear as empty folders after reloading the catalog.

Tue. September 16, 2025
21.0.476

Fix bug where trying to set the packed primitive pivot intrinsic with less 3 values would have no effect. Instead, it now overwrites just the given component values.

Tue. September 16, 2025