Houdini Main Changelogs
| 20.5.921 | Fixed a bug computing render dependencies for ROP subnets. |
yesterday | |
| 21.0.673 | Fixed a bug computing render dependencies for ROP subnets. |
yesterday | |
| 20.0.1393 | The Instancer LOP, RBD Destruction LOP, and Modify Point Instances LOP now correctly translate the 'w' attribute from radians per second to degrees per second when authoring the 'angularVelocities' attribute for point instancers. This conversion was already done by the SOP Import LOP |
yesterday | |
| 20.5.921 | The Instancer LOP, RBD Destruction LOP, and Modify Point Instances LOP now correctly translate the 'w' attribute from radians per second to degrees per second when authoring the 'angularVelocities' attribute for point instancers. This conversion was already done by the SOP Import LOP |
yesterday | |
| 21.0.673 | Avoid running shader with trace calls during geometry-light precomputation stage |
yesterday | |
| 21.0.673 | Fixed issues with needing to relogin every reboot and having to change server listing on each reboot. |
yesterday | |
| 21.0.673 | XPU: skips degenerate curve segments to prevent crash during rendering |
yesterday | |
| 21.0.672 | Improved FBX import performance when processing string attributes. |
Tue. March 31, 2026 | |
| 21.0.672 | Muscle Properties Otis and Muscle Constraint Properties Otis SOPs now update muscle highlighting in the viewport as soon as a new multiparm tab is selected. The group and attribute list size is no longer hardcoded by the viewer state for these two nodes. |
Tue. March 31, 2026 | |
| 21.0.672 | The Wedge TOP now supports changing how numeric wedge values are applied to the target node. Previously the wedge would always set the target parameter to an @attrib reference expression, however it's now possible to configure the node to apply values directly. |
Tue. March 31, 2026 | |
| 21.0.672 | Fixed documentation for the HOUDINI_DEFAULT_LOG_SOURCES environment variable which wsa giving incorrect information about its default value. |
Tue. March 31, 2026 | |
| 21.0.671 | .usdnc should show up in File choosers for USD files, allowing selection of apprentice files. |
Mon. March 30, 2026 | |
| 21.0.668 | The Tissue Properties Otis SOP now outputs `fiberstiffness` instead of `solidfiberstiffness` if the Fiber Stiffness option is toggled on for the Core or Solid Layer. This means that the Otis Muscle and Tissue Configure SOP will now recognise fiber stiffness on tissue. Existing setups that had the fiber stiffness toggled on for tissue despite it having no effect will now produce a different, correct result. |
Fri. March 27, 2026 | |
| 21.0.668 | Fixed a bug in karma CPU where LPE AOVs with expressions ending with 'O' (e.g. emission) that exclude certain LPE tag using `^` metacharacter would erroneously exclude object without any LPE tags. |
Fri. March 27, 2026 | |
| 21.0.668 | Fixed a bug in karma CPU where LPE AOVs with expressions ending with 'O' (e.g. emission) that exclude certain LPE tag using `^` metacharacter would erroneously exclude object without any LPE tags. |
Fri. March 27, 2026 | |
| 21.0.668 | Fixed a bug in the Otis Muscle and Tissue Configure SOP where the Muscle End Mask Threshold wasn't taken into account on the bones if they have a muscleendmask attribute. This can cause different results in existing files where the bones have this attribute. |
Fri. March 27, 2026 | |
| 21.0.668 | Fixed an issue on Windows where upgrading hserver would often cause a reboot request. |
Fri. March 27, 2026 | |
| 21.0.668 | Have Karma AOV VOP author attributes by the same names as Render Var LOP. |
Fri. March 27, 2026 | |
| 20.5.916 | Fixed a bug in 'hitN_facing' ray import where normals facing away from viewer at grazing angles produce bad results. |
Fri. March 27, 2026 | |
| 21.0.668 | Fixed a bug in 'hitN_facing' ray import where normals facing away from viewer at grazing angles produce bad results. |
Fri. March 27, 2026 | |
| 20.5.916 | Fixed issue where filtering in the Scene Graph Details could cause Houdini to hang/crash in certain circumstances. |
Fri. March 27, 2026 | |
| 20.5.916 | Added a Render Gallery setting to control whether the LOP Network is captured when taking a snapshot. The default remains true, keeping the pre-control behaviour. |
Fri. March 27, 2026 | |
| 21.0.668 | Fixed issue where filtering in the Scene Graph Details could cause Houdini to hang/crash in certain circumstances. |
Fri. March 27, 2026 | |
| 21.0.667 | Fixed OpenPBR Surface loading in Edit Material Network LOP. |
Thu. March 26, 2026 | |
| 21.0.667 | Fixed an issue where ramp paramters could crash inside PCG nodes. |
Thu. March 26, 2026 |