Houdini Main Changelogs

21.0.565

Fixed an issue where PCG nodes would not update the number of inputs when an HDA changes in Session Sync.

yesterday
21.0.563

Fix erroneous cook error in Joint Deform and Bone Deform SOP nodes when the input geometry's position attribute is in 64-bit precision, or if a deforming attribute's precision changes on the next cook.

Fri. December 12, 2025
21.0.563

Fixed a crash when using the Noise<Float,Float> apex node.

Fri. December 12, 2025
21.0.563

Fixed a bug where selections on primitive instances would continue displaying after being cleared

Fri. December 12, 2025
21.0.562

Fixed a bug in the RBD Bullet Solver SOP's constraint breaking "At Frame" which would ignore the specified constraint names.

Fri. December 12, 2025
21.0.563

Add an option to tabbed multiparms and ramps that allows them to receive UI-only changes to their parameter callbacks.

Fri. December 12, 2025
21.0.563

Fixed a bug when stitching deep images that had a data window that included overscan or cropped data. This also affected the itilestitch command line tool.

Fri. December 12, 2025
21.0.563

Fix the scene graph layers pane to resolve layers using the current stage's asset resolver context, so the resolved layers being displayed will match the layers resolved on the stage.

Fri. December 12, 2025
21.0.562

Muscle Tension Lines Activate SOP viewer state improvements.

  • Line ID text display matches selection highlighting more closely.
  • Better handling of Line ID text positioning to reduce overlaps.
  • Parameters added to control Line ID text font size and random offset.
  • Keyboard shortcut added to toggle line colour between activation and ID.
  • Group list widget size no longer resets when entering the state.
  • Group list widget colour display is off by default.
Thu. December 11, 2025
21.0.562

Fixed the "Import SOP Nodes" button on the APEX Graph SOP. It now properly sets up connections between the imported SOP verbs.

Thu. December 11, 2025
21.0.562

Fixed a bug where some pick ID render passes wouldn't respect the option to ignore backfaces

Thu. December 11, 2025
20.5.810

The size of the HUSD_Imaging and XUSD_ImagingEngine::Parameters objects have changed. This may affect some HDK plugins that use these classes and thus require a recompilation.

Thu. December 11, 2025
20.5.810

Houdini clone processes are now able to work with Storm-like renderers (immediate mode rendering with OpenGL). Storm still does not appear in the list of available clone renderers, but custom render delegates with similar designs can now be used with clones.

Thu. December 11, 2025
21.0.562

Houdini clone processes are now able to work with Storm-like renderers (immediate mode rendering with OpenGL). Storm still does not appear in the list of available clone renderers, but custom render delegates with similar designs can now be used with clones.

Thu. December 11, 2025
21.0.562

Add support for overriding file parameters of MaterialX Image nodes in the Vulkan viewport

Thu. December 11, 2025
21.0.562

In the Rig Tree pane, added right-mouse menu option to "Copy as Full Path".

Thu. December 11, 2025
21.0.562

Fixed bugs in the skel::EvaluateMotionClip and skel::EvaluateMotionClipArray APEX callbacks that would cause the output to evaluate incorrectly on evaluations after the first.

Thu. December 11, 2025
21.0.562

Fixed a bug where many tools in the animate state would be slightly delayed in applying their effect while posing.

Thu. December 11, 2025
21.0.561

pic, picni, and res expression functions are documented as being old-COPs only.

Wed. December 10, 2025
21.0.561

Fixed a bug where geomprop readers on materials assigned to geom subsets would fail to read arbitrarily named primvars in offline renders.

Wed. December 10, 2025
21.0.561

Fixed bug in SOP GLTF Animation Import that would cause a skeletal animation to import incorrectly when the skeleton contained a mix of animated joints with transforms defined by individual TRS components and static joints with transforms defined by matrices.

Wed. December 10, 2025
21.0.561

The Karma LOP will now respect the usedicingcamera toggle.

Wed. December 10, 2025
21.0.561

Fixed a bug where cryptomatte layers would have broken data around tile boundaries when using husk's auto-tile feature.

Wed. December 10, 2025
20.0.1281

Fixed viewport losing time dependency from a SOP after it enters an error state.

Wed. December 10, 2025
21.0.561

Fixed the axis projection menu items in the viewport Home submenu being improperly dimmed when in a perspective view.

Wed. December 10, 2025