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Clarify mesh subdivision options in physics documentation #1948

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eoineoineoin
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Description of Change(s)

Add a short note to physics documentation for an easy-to-overlook property which might affect an implementation.

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Adding subdivision to a mesh may visibly impact physics collider
generation and is easy to miss. Add a short note to make potential
implementors aware that this could be a source of discrepancy between
graphical and physics representation of a mesh.
@@ -379,6 +379,12 @@ a bounding sphere. If an implementation does not support a particular kind of
approximation, it is recommended that it falls back to the most similar
supported option.

Note that use of the subdivision attribute (\ref
UsdGeomMesh::GetSubdivisionSchemeAttr()) can cause features such as sharp
corners to be removed from the graphical representation. In order to ensure the
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Suggest:
“corners and edges to be…”

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Good shout; thanks. Reworded that part.

@sunyab
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sunyab commented Jul 18, 2022

Filed as internal issue #USD-7491

@pixar-oss pixar-oss merged commit 83878e9 into PixarAnimationStudios:dev Sep 12, 2022
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4 participants