Houdini Main Changelogs

21.0.587

Backport for r524864 - Fixed a bug in Layout LOP parm dialog where resizing the protoype gallery was glitching.

yesterday
21.0.587

Live cook nodes in the HDK no longer need to implement OP_Node::castToOpDopParent().

yesterday
21.0.587

Fixed a bug in the Tissue Solidify Otis SOP where a new parameter, "Show Blurring on Exterior Remesh", was always hidden.

yesterday
21.0.587

Fixed bug where a state interrupted by a volatile state in a context viewer or a composite viewer would exit rather than resume when the volatile state was exit.

yesterday
21.0.587

Updated the ZibraVDBForHoudini plugin to v1.2.2.0. This includes improved VDB volume metadata serialization. Full details on what has changed available here: https://github.com/ZibraAI/ZibraVDBForHoudini/releases

yesterday
21.0.587

Backport for r524814 - Assetutils - Fixed a bug where there was no fallback mechanism for missing variant thumbnail when bringing in assets from the asset catalog.

yesterday
21.0.587

Fix curve rendering errors in VK viewport, where MaterialX materials weren't compiled in some cases, Attributes couldn't be sampled with Geometry Property Nodes, and Alpha properties weren't displayed

yesterday
21.0.587

Fix a problem where the lightlinker UI was getting some items added to the geometry tree twice.

yesterday
21.0.587

Fixed a bug where the output of the MtlX Geometry Property Value node wouldn't update properly in the VK viewport when changing the sampled attribute

yesterday
21.0.585

Fix missing clamp for invalid 0 scale values in transform::Build apex node. Note that this changes behaviour for these type of matrices.

Sat. January 3, 2026
21.0.585

Fix missing clamp for invalid 0 scale values in transform::Build apex node. Note that this changes behaviour for these type of matrices.

Sat. January 3, 2026
21.0.584

Fixed a bug with hkey where it was always reporting the license server as not having write access. This prevented users from being able to redeem entitlements.

Fri. January 2, 2026
21.0.584

Fixed an issue where the Filter List editor window initializes itself before it is needed.

Fri. January 2, 2026
21.0.584

Added global property 'DCM Exclude Holdouts' in Karma Render Settings to prevent holdouts from generating deep samples.

Fri. January 2, 2026
20.5.832

Fixed bug where cancelling a Save As File from the Scripts or Extra Files tabs of the type properties dialog popped up a failure dialog.

Fri. January 2, 2026
21.0.584

Fixed bug where cancelling a Save As File from the Scripts or Extra Files tabs of the type properties dialog popped up a failure dialog.

Fri. January 2, 2026
21.0.584

Selecting an export preset on the FBX Animation Output or FBX Character Output ROP will now set the "Joint Display Scale" parameter to the value appropriate for each target DCC. This should have been done when the parameter was first added to the node.

Fri. January 2, 2026
20.5.832

Fixed a bug where Color visualizers wouldn't update when changing the visualized attribute from a vertex attribute to a point attribute

Fri. January 2, 2026
21.0.584

Fixed a bug where Color visualizers wouldn't update when changing the visualized attribute from a vertex attribute to a point attribute

Fri. January 2, 2026
21.0.580

Backport for r524669 - Fixed incorrect imports in permanentdefaultdialog causing python errors

Mon. December 29, 2025
21.0.573

Selecting the "Unreal Engine" export preset on the FBX Animation Output ROP will now enable the "Remove Scaling from Joint Transforms" toggle parameter. This should have been done when the parameter was first added to the node.

Mon. December 22, 2025
20.5.821

Fixed the select state in the LOP viewport not responding to the Shift+C and Shift+V shortcuts

Mon. December 22, 2025
21.0.573

Fix the select state in LOP viewport not responding to the Shift+C and Shift+V shortcuts

Mon. December 22, 2025
21.0.573

Fixed an absolute path inside the Test Geometry: Otto Muscle Transfer Recipe. Inside the rig_retransfer_and_rebuild subnet, Otto's original rig is read in with a file node referencing the rig embedded inside the Test Geometry: Otto SOP. This prevents an 'Invalid attribute specification: "name"' error downstream when not in a geometry OBJ node called "geo1", due to the corrective ray geometry not existing. Visibility of the corrective ray geo is now enabled for the transfer in order to visually validate the transfer result.

Mon. December 22, 2025
21.0.570

Unhide several apex subgraphs: GetRig, UpdateRig, AddControlAction, AddControlGroup AddControlGroupPrimary, AddConfigControl and add the according documentation for the given subgraphs

Fri. December 19, 2025