Houdini Main Changelogs

21.0.546

Prevent unnecessary time dependence of Edit Context Options nodes.

Tue. November 25, 2025
20.0.1266

Fixed a possible crash when dicing a large face very finely.

Tue. November 25, 2025
20.5.794

Fixed a possible crash when dicing a large face very finely.

Tue. November 25, 2025
21.0.546

Eliminate some unnecessary recooking when two cook requests differ only by the "depth" of the context option stack (even though all option values may be unchanging).

Tue. November 25, 2025
21.0.546

The @foo.tuplesize and @foo.tuple bindings will work with auto-tuple size of 0 specified in the manual bindings; previously it was only working for the "#bind point foo float?" automatic binding.

Tue. November 25, 2025
21.0.546

Adjusted the large mesh threshold for Vulkan to match that of OpenGL, as threading the submesh updates isn't providing as much benefit as leaving the large mesh as-is.

Tue. November 25, 2025
21.0.546

Reduce the number of resources that are pre-allocated, which can avoid hitting errors caused by driver limits in some cases

Tue. November 25, 2025
21.0.546

Fixed a bug on the blendshape component where it wasn't reliable picking up multi/surface sliders.

Tue. November 25, 2025
20.0.1265

Fix a bug that prevented Solaris from muting layers with URL identifiers.

Mon. November 24, 2025
21.0.545

Fixed a bug where selection on nested packed primitives would display incorrectly

Mon. November 24, 2025
21.0.545

Fixed a bug where attributes would still be displayed in the viewport after being deleted

Mon. November 24, 2025
21.0.545

Fixed a possible crash when dicing a large face very finely.

Mon. November 24, 2025
21.0.545

Fixed a bug in the APEX Animate state where the controls for blendshape sliders would move somewhere other than the slider geometry.

Mon. November 24, 2025
21.0.545

Fixed a crash when creating landscapes on Unreal 5.7.

Mon. November 24, 2025
21.0.542

AOV names that contain spaces in EXR files are now imported properly.

Fri. November 21, 2025
20.5.789

Fix Shape Diff SOP crash when given inputs with mismatched point counts.

Thu. November 20, 2025
21.0.541

Fix Shape Diff SOP crash when given inputs with mismatched point counts.

Thu. November 20, 2025
21.0.541

Fixed a bug where deep camera map in EXR format had incorrect channel names for beauty plane ('C.r', 'C.g', 'C.b' instead of 'R', 'G', 'B').

Thu. November 20, 2025
20.5.789

    Added a "Remove Scales from Joint Transforms" toggle parameter to the    FbxAnimOutput ROP. This removes scaling from the global transforms of    skeleton joints while preserving rotation and translation.

Thu. November 20, 2025
21.0.541

Grayscale RLE-compressed TGAs are now supported.

Thu. November 20, 2025
20.5.789

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

Thu. November 20, 2025
21.0.541

Muscle Paint SOP has new parameter "Otis Attributes Only" to remove Vellum only muscle attributes from paintable attributes.

Thu. November 20, 2025
21.0.541

Fixed a bug on the limb component that would cause the twist to not work as expected.

Thu. November 20, 2025
21.0.540

Added a new toggle 'Treat Mono as Alpha' to Scatter Shapes COP. Which fixes a case where a mono input with mono output signature would result in a different look to the original.

Wed. November 19, 2025
21.0.540

Fixed a bug in CPU and XPU (with embree device) where uniform volumes may sometimes produce fictitious hits outside of container geometry, which can cause speckling artifacts in utility AOVs such as built-in depth AOV.

Wed. November 19, 2025