2 thoughts on “Firefox Nightly: Error: WebGL: texImage2D: Chosen format/type incured an expensive reformat: 0x1908/0x1401

  1. This now also happens in the normal/not nightly Firefox version. I can confirm that this happens with a canvas texture.

  2. To fix it, I manually flipped Uint8Array image data.

    which is like exactly what they warn about – slow cpu conversion – but now even slower than they could do in native code.

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