Houdini Main Changelogs

20.5.839

Fixed Pinned curve state not sticking when only point positions change in the LOPs Houdini delegate.

金. 1月 9, 2026
20.5.839

Updated the ZibraVDBForHoudini plugin to v1.2.3.0. This includes bug fixes and improved VDB volume metadata serialization. Summary of the changes available here: https://github.com/ZibraAI/ZibraVDBForHoudini/releases

金. 1月 9, 2026
21.0.591

Surface Deform SOP now has blur parameters added, to smooth the deformation without loss of detail from the input geometry. Treat Deformer as Subdivision Surface is now off by default to avoid slow cooking with high resolution deformer meshes. Fixed a bug where the Group selector script gave an error.

金. 1月 9, 2026
21.0.591

Updated the ZibraVDBForHoudini plugin to v1.2.3.0. This includes a fix to ensure environment variables defined within Houdini packages are queried correctly.

金. 1月 9, 2026
21.0.590

Fixed a bug where Fixed a bug where the Copernicus Settings dialog window failed to load in Qt5 builds.

木. 1月 8, 2026
21.0.590

Fixed a Windows-only bug where some standalone utility applications such as `renderstatsreport` and `renderstatsoverlay` failed if the Houdini %HFS% variable evaluated to a path containing whitespace.

木. 1月 8, 2026
21.0.590

Fixed a bug where hkey was not updating the UI when setting the accounts API keys.

木. 1月 8, 2026
21.0.590

Fixed a bug where particles drawn as discs wouldn't draw at the default scale if a pscale attribute was added and deleted

木. 1月 8, 2026
21.0.590

The Houdini Engine plugin for Unreal Engine is now available for Unreal Engine 5.6 on macOS.

木. 1月 8, 2026
21.0.590

Fixed a bug in the geo::PrimPoints and geo::PointPrims callbacks where they could return incorrect results when executed repeatedly (e.g. in a loop)

木. 1月 8, 2026
20.5.838

The LOP transform handle now positions itself properly when the target prim has an animated transform.

木. 1月 8, 2026
21.0.590

The LOP transform handle now positions itself properly when the target prim has an animated transform.

木. 1月 8, 2026
21.0.589

Fixed an issue where horizontally-joined parameters don't have their spacing calculated correctly when some of them are hidden.

水. 1月 7, 2026
21.0.589

Added a toggle to APEX Unpack Character to create a name attribute on the output skin. This is necessary for the ROP FBX Character Output to function properly.

水. 1月 7, 2026
20.5.837

Fixed the Tasks -> Dirty Node and Shift+D hotkeys not working when used with a Remote Graph network. They now correctly generate a dirty request over the remote connection, and trigger a dirty of the selected node.

水. 1月 7, 2026
20.5.837

Fixed a Python exception/error when using the Tasks -> Dirty All or Tasks -> Cook Output Node menu entries from within a Remote Graph TOP network.

水. 1月 7, 2026
21.0.589

Added a new control to the HOUDINI_TEXTURE_DISK_CACHE variable which controls how textures stored on network drive will be handled. Since network file locking is notoriosly unreliable, the default behaviour is to now store network texture files on the local drive in the temporary cache directory.

This is a change in behaviour but should prevent issue with multiple hosts trying to convert textures simultaneously. Performance might also be improved since converted files are now on local storage.

水. 1月 7, 2026
21.0.589

Added a new control to the HOUDINI_TEXTURE_DISK_CACHE variable which controls how textures stored on network drive will be handled. Since network file locking is notoriosly unreliable, the default behaviour is to now store network texture files on the local drive in the temporary cache directory.

This is a change in behaviour but should prevent issue with multiple hosts trying to convert textures simultaneously. Performance might also be improved since converted files are now on local storage.

水. 1月 7, 2026
21.0.589

Fixed possible crash in Karma when Hydra passed unexpected types of indexed primvar data.

水. 1月 7, 2026
21.0.589

Saving HDA node type info for the translated USD material prims to allow retrieving parameter layout for Edit Material Properties LOP.

水. 1月 7, 2026
21.0.589

Fixed the ui on the Mapped Constriants.

水. 1月 7, 2026
21.0.588

Fixed a crash in ROP GLTF Character Output that occurs when exporting mesh blend shapes for a character that is not animated (e.g. no animation input is provided to the ROP node).

火. 1月 6, 2026
21.0.588

Fixed the Tasks -> Dirty Node and Shift+D hotkeys not working when used with a Remote Graph network. They now correctly generate a dirty request over the remote connection, and trigger a dirty of the selected node.

火. 1月 6, 2026
21.0.588

Fixed a Python exception/error when using the Tasks -> Dirty All or Tasks -> Cook Output Node menu entries from within a Remote Graph TOP network.

火. 1月 6, 2026
21.0.588

Added "Wants" to hserver and sesinetd system service on Linux to ensure both services run after the network is operational.

火. 1月 6, 2026