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[Houdini] rightHanded mesh packed prim with vertex attributes render incorrectly in viewport #631

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marktucker opened this issue Sep 20, 2018 · 2 comments
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[Houdini] rightHanded mesh packed prim with vertex attributes render incorrectly in viewport #631

marktucker opened this issue Sep 20, 2018 · 2 comments

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@marktucker
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Description of Issue

When a USD mesh with rightHanded orientation and a vertex primvar for color, opacity, or normals is rendered as a packed primitive in the Houdini viewport, the vertex attributes are set on the wrong vertices. When the geometry is unpacked to polygons, the attributes are assigned to the correct attributes.

Steps to Reproduce

  1. Open the attached vertex_colored_grid.hip file into Houdini with the Houdini plugins enabled.
  2. Notice that as you move the display flag from file1 to unpack1 and back, the geometry changes. File1 is showing the USD packed primitives. Unpack1 is showing the unpacked polygons.

vertex_colored_grid.zip
@jtran56
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jtran56 commented Sep 20, 2018

Filed as internal issue #USD-4775.

pixar-oss added a commit that referenced this issue Jan 14, 2019
@pixar-oss
Merge pull request #632 from marktucker/dev_houdini_display_vertex_at…
11f9a5e 
…tributes

Issue #631: fixing vertex attributes on rightHanded meshes when refining for the viewport

(Internal change: 1925071)
@sunyab
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sunyab commented Aug 11, 2023

Closing old issue -- USD no longer ships with a Houdini plugin. (Plus it looks like #632 fixed this anyway but GitHub failed to close the issue automatically).

@sunyab sunyab closed this as completed Aug 11, 2023
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3 participants
@marktucker @sunyab @jtran56