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No opaque lookup when IBL is disabled #552

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emackey opened this issue Jun 19, 2024 · 0 comments
Open

No opaque lookup when IBL is disabled #552

emackey opened this issue Jun 19, 2024 · 0 comments
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@emackey
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emackey commented Jun 19, 2024

When IBL is disabled, materials using KHR_materials_transmission don't do any texture lookup in the opaque pass. So, all transmissive materials appear pitch black when IBL is off.

Spotted in #544 (comment)

To reproduce this, turn off image-based lighting and view any of the transmission samples: AttenuationTest, TransmissionTest, MosquitoInAmber, DragonAttenuation, etc.
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@emackey @UX3D-haertl