USD for Maya v0.32.0 Release Notes
Release Highlights
Animation Curves for camera attributes. The USD Exporter now supports animation curves for camera attributes such as aperture and focal length.
Support for MaterialX documents. We've added support for MaterialX documents in the USD Exporter.
Updated USD lights. USD lights now use relevant shape size settings, ensuring accurate shape representation in the viewport.
USD Collection Widget improvements. We've improved the USD Collection Widget for better performance and usability.
New Python functions for USD Layer Editor. You can now use the new Python functions to get and set the selected layer in the USD Layer Editor.
What's Fixed
| Fixed an issue where duplicating instanced objects to USD data did not bring the instances EMSUSD-1528 |
| Added a missing link to the online help in the Create USD Stage from File Options window EMSUSD-1598 |
| Addressed unexpected behavior with mayaUSDExport when append=True EMSUSD-1783 |
| Resolved a problem where Viewport panel > tear off copy didn't work with UFE cameras EMSUSD-1845 |
| Fixed a crash caused by using Double Switch and 2dTexture with file on a shader exported to USD EMSUSD-1896 |
| UFE cameras are now properly hidden when the stage transform and shape are hidden EMSUSD-1910 |
| Enabled removal of expressions through the Light Link Collection rollout EMSUSD-1954 |
| Changed the default focus in the Reload Layer dialog from Cancel to Reload EMSUSD-1972 |
| Addressed unresponsiveness in the USD Collection widget after resizing the rollout EMSUSD-1995 |
| Fixed minor UI issues in the new Collection Widget for Light Linking EMSUSD-1997 |
| Help line now correctly displays the tooltip for Include All EMSUSD-1999 |
| Resolved an issue where light linking list resizing wasn't preserved EMSUSD-2004 |
| Fixed UI scaling issue that caused Include/Exclude text to be cut off in the Light Linking Collection rollout EMSUSD-2012 |
| Added an error message when incompatible objects are added to a USD collection EMSUSD-2014 |
| Corrected a misleading header in the extra menu UI of the collection widget EMSUSD-2078 |
| Prevented unintended reordering of objects when adding an object to the light Link collection EMSUSD-2083 |
| Eliminated terminal errors that appeared when the Light Link Collection UI was displayed EMSUSD-2095 |
| Fixed an issue where pressing Delete on a selected collection item deleted the prim instead EMSUSD-2098 |
| Restored proper display of collection lists in Maya 2023 and 2024. EMSUSD-2132 |
| Fixed missing instanced prims during USD export when using exportRoots in scenes with instances EMSUSD-2148 |
| Ensured consistent button styling for selecting objects in the viewport in the collection widget when inactive EMSUSD-2151 |
| Enabled proper functioning of mayaUsd_ProxyTargetsSessionLayerOnOpen option EMSUSD-2154 |
| Prevented user input from being reverted when updating to a non-existent prim path in the Include/Exclude lists EMSUSD-2155 |
| Allowed users to cancel prim path edits in collections EMSUSD-2159 |
| Resolved failure when selecting objects from expressions if Include/Exclude lists were present in the Light Link Collection rollout. EMSUSD-2160 |
| Fixed deletion of collection items triggered by invalid input EMSUSD-2167 |
| Ensured the text input UI fully covers the path behind it when editing a collection EMSUSD-2168 |
| Fixed an issue where double-clicking on other prims cancelled the edits on the current prim EMSUSD-2169 |
| Enabled arrow key navigation in the look-ahead object list EMSUSD-2170 |
| Improved error messaging when a prim is added to its own collection EMSUSD-2171 |
| Prevented AE template errors caused by adding schemas without attributes to a prim EMSUSD-2185 |
| Made MaterialX Python bindings accessible by default EMSUSD-2188 |
| Significantly improved performance when working with USD Cameras EMSUSD-2199 |
| Fixed a crash that occurred when hiding a duplicated stage EMSUSD-2222 |
| Resolved a defect triggered by passing a lambda to usdUfe.registerUICallback() EMSUSD-2224 |
| Improved selection performance when the USD Layer Editor is open EMSUSD-2232 |
| Fixed a crash when adding a camera prim under a Def prim EMSUSD-2278 |
| Made the USD Layer Editor launch correctly from the proxy shape's context menu EMSUSD-2301 |
| Fixed an issue where removing objects from one list cleared selections from the other in the Light Link Collection rollout. EMSUSD-2309 |
| Fixed cases where Undo did not work after saving a layer. EMSUSD-2327 |
| Restored functionality of the Pin Stage button after adding/removing USD stages EMSUSD-2331 |
| Updated warning messaging when trying to edit a system-locked USD layer EMSUSD-2344 |
Known limitations
| Animation curves are not fully implemented in USD 24.11 or in Maya USD 0.32. Currently, only camera attributes are supported for export. Animation curves on other attributes, such as light attributes or transforms on objects, are not supported in export. Import of animation curves is also not supported. |
| VP2 shading for USD lights does not work in the viewport. As a workaround, use the Hydra viewport or Arnold IPR for lighting previews. |
For more information, visit Autodesks's official Maya USD Github community.