Houdini Main Changelogs

20.5.710

Fixed an issue where HLODs and Data Layers would not be set correctly when using the Async Importer.

today
20.5.710

Print Houdini crash log to Unreal log if the plugin thinks Houdini terminated.

today
21.0.462

Fixed an issue where HLODs and Daya Layers would not be imported correctly when using the Async Importer.

yesterday
21.0.462

Fix potential crash when hitting Esc at just the right time when building a polymesh sphere.

yesterday
21.0.462

Fixed bad retargeting of the Metal Tearing MPM tool recipe caused by changing point counts. The MPM Container is now closed instead of deleting points.

yesterday
21.0.462

Fixed incorrect UI input label.

yesterday
21.0.462

Fixed two bugs in the APEX Animate state's dynamic motion tool. When baking to a new layer in basic mode, the "Keep Existing Keys" toggle will now ensure that the existing keys are added to the new layer. When baking to a new layer in advanced mode, existing keys will be deleted when "Keep Existing Keys" is turned off.

yesterday
21.0.462

Fixed a bug with sesictrl query-user command causing it to crash.

yesterday
21.0.462

Fixed a Python exception in the ML Train Style Transfer TOP, when the node is configured to train from a single input image pair.

yesterday
21.0.462

Fixed the ordered vars menu in the Karma Render Products node.

yesterday
21.0.462

Print Houdini crash log to Unreal log if the plugin thinks Houdini has crashed.

yesterday
21.0.462

Fixed an issue with the launcher when uninstalling multiple versions at once.

yesterday
21.0.462

Added back support for grouping similar licenses together in hkey.

yesterday
21.0.462

Mark the Dome Light Portals parameter as a "USD prim list" so that it provides the correct auto-completion results.

yesterday
21.0.462

Karma now handles the ND_UsdPrimvarReader_filename MaterialX node correctly.

yesterday
20.5.710

Implemented orient on snap for indirect dragging of transform handles.

yesterday
21.0.462

Implemented orient on snap for indirect dragging of transform handles.

yesterday
21.0.462

There's a new envrrionment variable (HOUDINI_OIIO_MAX_STAT_LENGTH) which determines the maximum length of the OpenImageIO texture stats string returned by the Houdini texture library. Setting this to 0 will result in the previous behaviour (no truncation of the string).

yesterday
21.0.462

Fixed an issue with OpenEXR texture maps that might cause too many files to be open concurrently. With large numbers of textures, it was possible for the OpenImageIO texture cache to open too many texture files, leading to system instability.

yesterday
21.0.461

Recipes:

  • The recipe selection window on the Recipe Builder now lists recipes without a node type pattern.
  • Fixed bug that would not open the Preset Parameter selection window on new Recipe Builder instances.
Mon. September 1, 2025
21.0.461

Fixed an issue where multiple active live renders would write to the same image buffer (rather than each having their own unique buffer).

Mon. September 1, 2025
21.0.458

Fixed a crash displaying background images in viewport, using MoltenVK

Fri. August 29, 2025
21.0.458

Muscle Auto Tension Lines SOP Group parameter now works as expected.

Fri. August 29, 2025
21.0.458

Fix corrupted channel references on Geometry Data parameters when the parent multi parameter folder isn't a spare parm. Reloading a scene with a channel reference on these parameters wasn't relinking the channel reference properly. The MotionMixer Setup SOP hda 'source#' geometry parameter was such a parameter.

Fri. August 29, 2025
21.0.458

Reduce the diffuse roughness for sampling environment maps in the working lights that use them (Dome, Physical Sky). Prevents some odd artifacts.

Fri. August 29, 2025