PMREMGenerator: Fixed using compressed cubemaps. #22699
Merged
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Related issue: https://discourse.threejs.org/t/compressed-envmaps-broken-past-r129-for-me-at-least/30924
Description
PMREMGenerator
was not able so far to correctly detect compressed cube maps. A runtime error happened because_textureToCubeUV()
picked the equirectangular shader although the cube map one should be used.