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Autodesk / maya-usd

A common USD (Universal Scene Description) plugin for Autodesk Maya
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ProxyAccessor driven by referenced transform does not evaluate after re-opening scene #3898

Open ika-rporter opened 2 months ago

ika-rporter commented 2 months ago

Describe the bug If I create a proxyAccessor to drive the xformOp properties on an Xform prim from a referenced Maya transform, it works as expected in the current session. However, once your save and re-open the scene, it no longer works.

Steps to reproduce Steps to reproduce the behavior:

  1. Create > Universal Scene Description > Stage With New Layer
  2. Add an Xform prim 2a. Add a Cube prim as a child of the Xform prim (for visibility)
  3. Reference a file with a single transform
  4. Create a proxyAccessor using mayaUsd.lib.proxyAccessor.connectItems
  5. Move the referenced transform; observe the Xform prim follows
  6. Save and re-open the scene
  7. Observe the Xform prim is at origin, and no longer follows the referenced transform.

An example setup is provided in the attached scene.

Expected behavior A proxyAccessor to drive the xformOp properties of an Xform prim, driven by a referenced Maya transform, should still work after the scene is re-opened.

Attachments scene.zip

Specs (if applicable):

wallworm commented 2 months ago

Thanks for reporting. The team will investigate.