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Autodesk: Vulkan validation errors #3589

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erikaharrison-adsk
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Description of Change(s)

  • Fix Vulkan validation errors related to volume rendering.
  • A cull compute shader sometime has a topologyVisibility binding. The pipelineDrawBatch doesn't bind this buffer for culling. It's not actually used, so not binding the buffer doesn't break anything, but Vulkan mandates that any buffer in a descriptor set layout (created by reflection) must be bound, regardless of its use. This caused a validation error. I moved the binding call so it now executes for both cull and draw.
  • SubmitLayoutChange should return the old layout so restoring it isn't as error prone
  • Sometimes old layout can be depth instead of color.
  • Don't enable alpha-to-coverage if there's no color attachment

Link to proposal (if applicable)

  • N/A

Fixes Issue(s)

  • N/A

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@jesschimein
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Filed as internal issue #USD-10870

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@jesschimein
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/AzurePipelines run

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@tallytalwar
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/AzurePipelines run

@tallytalwar
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/AzurePipelines run

@jesschimein
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/AzurePipelines run

@pixar-oss pixar-oss closed this in ed94863 Apr 29, 2025
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4 participants