fix: handle flipY: false correctly in copyExternalImageToTexture#337
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wcandillon merged 2 commits intowcandillon:mainfrom Mar 25, 2026
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Thanks a lot for catching this!
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Fixes #336
Summary
std::optional<bool>check inGPUQueue::copyExternalImageToTexturethat treatedflipY: falsethe same asflipY: trueif (source->flipY)→if (source->flipY.value_or(false))Context
Three.js r173 (mrdoob/three.js#30260) started passing
flipYexplicitly tocopyExternalImageToTexture. This exposed the bug — GLTF textures passflipY: false, which engaged the optional and triggered the flip path, producing visually corrupted textures.