PixarAnimationStudios / OpenUSD

Universal Scene Description

Home Page:http://www.openusd.org

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Embree instancer rotations issue

paoloemilioselva opened this issue · comments

Description of Issue

Embree instancer doesn't handle rotation properly.
It might not be a big deal, I've noticed it a while back, just wondered why hasn't been fixed yet.

This is InstancedMedCity in GL
Screenshot 2024-05-10 092609

This is current Embree
Screenshot 2024-05-10 092710

This is with a small fix to handle GfQuath too
Screenshot 2024-05-10 092917

This is a screencapture of what I've fixed
Screenshot 2024-05-10 093453

Not urgent, not high priority.

Steps to Reproduce

  1. Render instancedMedCity in Embree will show wrong rotation on instanced buildings

System Information (OS, Hardware)

Package Versions

usd-24.05

Build Flags

Filed as internal issue #USD-9663