Houdini Main Changelogs

21.0.665

Add hou.Node.revertParmInterface() which is analogous to the "Revert Parameter Interface" in the parm dialog's gear menu.

yesterday
21.0.665

Fixed rectangle light spread when texture is applied

yesterday
21.0.665

Karma has more robust checks for when to pin curve meshes.

yesterday
21.0.664

Fixed bug where the type-ahead search in the file chooser was unable to find the first row.

Mon. March 23, 2026
21.0.664

Fixed a bug with Tissue Properties Otis SOP where the Blend with Mask mode didn't work when the input tissue was Fascia only.

Mon. March 23, 2026
21.0.661

Fixed an odd MaterialX code generation error that could occur if the boilerplate shader source files were converted to non-UNIX line endings by a third party when they are installed (Houdini installs them with UNIX line endings).

Fri. March 20, 2026
21.0.660

Recipes: Fixes a bug where hython would error when installing/uninstalling recipes as graphical Houdini is not available.

Thu. March 19, 2026
21.0.659

Fixed a bug where UDIM textures would sample incorrect values for UV coordinates past the last column

Wed. March 18, 2026
20.5.907

Fixed a bug where UDIM textures would sample incorrect values for UV coordinates past the last column

Wed. March 18, 2026
21.0.659

Fixed a bug where some curves wouldn't be drawn in the viewport

Wed. March 18, 2026
20.5.907

Fixed a bug where some curves wouldn't be drawn in the viewport

Wed. March 18, 2026
21.0.659

Fixed a bug where some light placement states would break if interacting with curves instead of polygon surface

Wed. March 18, 2026
20.5.907

Fixed a bug where some light placement states would break if interacting with curves instead of polygon surface

Wed. March 18, 2026
20.5.907

Fixed a bug where instanced curves could be culled when they should be visible

Wed. March 18, 2026
21.0.659

Fixed a bug where instanced curves could be culled when they should be visible

Wed. March 18, 2026
21.0.659

Improve error messages when saving OpenEXR images fail due to a full disk.

Wed. March 18, 2026
20.0.1379

Fixed an issue with texture filtering in the hextiling VOP which might have caused shading discontinuities.

Wed. March 18, 2026
20.0.1379

Fixed an issue with texture filtering in the hextiling VOP which might have caused shading discontinuities.

Wed. March 18, 2026
20.5.907

Fixed an issue with texture filtering in the hextiling VOP which might have caused shading discontinuities.

Wed. March 18, 2026
20.5.907

Fixed an issue with texture filtering in the hextiling VOP which might have caused shading discontinuities.

Wed. March 18, 2026
21.0.659

Fixed an issue with the licenses tab in hkey auto scrolling it off the screen.

Wed. March 18, 2026
21.0.658

Avoid producing phantom auto_*_surface shader prims when loading an edit material LOP that was saved with HOUDINI_NODEDATA_ALPHABETICAL_SAVE=1

Tue. March 17, 2026
21.0.657

The Transform Pieces SOP will now report a warning if the attribute specified for "Match by Attribute" is not found.

Mon. March 16, 2026
21.0.657

Recipes:

  • Fixes drop-on-wire and avoid-overlap behaviour for decoration recipes invoked from OPmenu and ParmDonutMenu that was broken.
    • CTRL + Click on the menu entry will enable drop-on-wire behaviour.
      • ALT + Click on the menu entry will enable overlap avoidance.
  • Updated SOP Pyrosolver's Quick Setup now invokes the corresponding recipe if exists.
Mon. March 16, 2026
21.0.654

Fix missing delete rule icon from light & material linker

Fri. March 13, 2026