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Hydra instance categories broken with nested instanceable references #2002

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dleex opened this issue Aug 21, 2022 · 2 comments
Closed

Hydra instance categories broken with nested instanceable references #2002

dleex opened this issue Aug 21, 2022 · 2 comments

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@dleex
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dleex commented Aug 21, 2022

Description of Issue

HdSceneDelegate::GetInstanceCategories() returns wrong number of entries (and seemingly bogus data when lightlinking is present) when used with nested instanceable references.

Steps to Reproduce

  1. Sublayer and render using provided .usda file
  2. In Sync() of the inner prototype mesh, invoke HdSceneDelegate::GetInstanceCategories(), and note that the number of entries of the returned array is different from the actual number of instances. (the instance mapping from HdSceneDelegate::GetInstanceIndices() will map to out of bounds)

Package Versions

Reproducible in 22.05 (haven't tested other versions)

instancecategories.zip
@dleex
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dleex commented Aug 21, 2022

Happens in 21.08 as well.

@dleex dleex closed this as completed Aug 21, 2022
@dleex dleex reopened this Aug 21, 2022
@sunyab
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sunyab commented Aug 25, 2022

Filed as internal issue #USD-7579

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@sunyab @dleex