Houdini Main Changelogs

21.0.855

Fixed a bug where instanced fog volumes flicker when viewed from some angles

Wed. September 30, 2026
22.0.459

Fixed a bug where there would be a cap on the number of instances that could be selected using a box-select

Wed. September 30, 2026
22.0.459

Fixed a bug where some interactive tools, like the TopoBuild brush, would fail to interact with arbitrary parts of primitives.

Wed. September 30, 2026
22.0.458

Fixed wording in the ramp generator help text.

Tue. September 29, 2026
22.0.458

Fixed an issue where the ramp preset catalog would not reload properly when reopened.

Tue. September 29, 2026
22.0.458

Fixed an issue in the color editor where dragging a slider and holding it for a long time causes the editor to break.

Tue. September 29, 2026
22.0.458

Fixed an issue when running houdini in a container it would blindly use systemctl resulting unwanted warning messages that systemctl is not available.

Tue. September 29, 2026
22.0.458

Fixed an issue where an error message for interacting with a service was not being shown to the user.

Tue. September 29, 2026
22.0.458

Fixed a bug where generating a self-signed cert would hang or crash causing sesinetd to fail to start on windows.

Tue. September 29, 2026
22.0.458

Fixed a bug causing Read Lock contention in the PointInstancer LOP, when both inputs share a common ancestor node.

Tue. September 29, 2026
22.0.458

Fixed a bug in the PointInstancer LOP that would add extra ids, prototype indices or other attribute values when adding ids to a new PointInstancer that previously had no ids.

Tue. September 29, 2026
22.0.458

The TimePack COP's end time calculation now uses a tolerance to help avoid floating point accuracy issues. This may sometimes result in an extra frame: e.g. setting range to 0...1 with step of 0.1 will result now consistently in eleven frames, including one at 1.0.

Tue. September 29, 2026
22.0.457

Fixed an issue where changing non-tabbed folder would incorrectly set the child parameters value.

Tue. September 29, 2026
22.0.458

Configure Guide Deform improvements: Builtin feather uncondense (barb expansion), per-point capture and full feather barb deformation (use feather surfaces as skin), capture id matching, deformation against UsdSkel skinned skins without baking, lower GPU memory use, and several stability and caching fixes.

Tue. September 29, 2026
22.0.458

Guide Deform SOP performance improvements, and a fix for curves whose points are not in primitive order.

Tue. September 29, 2026
22.0.458

ML Train GSplats TOP's OCIO Input Space parameter now defaults to an input color space of "lin_rec709" instead of "scene_linear", which matches how Houdini/Karma writes EXRs by default. The old default gave wrong colors, when using ACEScg working space and other configs where "scene_linear" isn't "lin_rec709".

Tue. September 29, 2026
22.0.457
  • Added support for using COP HDAs.The output textures will be displayed on quads GameObjects.
  • Added support for texture types in the COP output names:normal, specular, roughness, emissive, opacity, alpha, occlusion, ao,metal can be used in the COP output's names to specify the type a texture.If present, the output of the COP HDA will combine and use them in a singlegenerated Material.
  • Fixed a few issues with baking if baked files had invalid characters in their names.
  • Fixed empty error dialog when attempting to load an HDA without a session.

>>>>>>> .r555543

Mon. September 28, 2026
21.0.853

Fixed error handling in the the LOP Actions menu, when the selected node is not a LOP node.

Mon. September 28, 2026
21.0.853

Fixed a crash that could occur in hou.Parm.pressButton() if button's action somehow destroyed the parameter.

Mon. September 28, 2026
22.0.457

Added color visualizer support on viewport subdivision surface.

Mon. September 28, 2026
22.0.457

RigPose SOP, add Ctrl+A hotkey to select all points.

Mon. September 28, 2026
22.0.457

Fix middle mouse clicking on a channel in the Channel Editor in the Animation Editor now pops up the ladder without having to first select the channel.

Mon. September 28, 2026
22.0.457

Fixed a bug with Cable Unpack and Cable Split COPs not correctly inheriting time dependencies from parameters.

Mon. September 28, 2026
22.0.457

Fixed a possible crash with atmospherics when ozone is enabled and mie or rayleigh scattering are either disabled or have low distribution values.

Mon. September 28, 2026
21.0.853

Fixed bug where the Hide Other Objects (World Space) mode in the viewer did not hide the parent LOP stage when diving into a SOP network.

Mon. September 28, 2026