Potential unexpected benefit of Pathfinder: Unifying font rendering on <canvas> across all OS’s to eliminate a source of fingerprinting.
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Replying to @andreasgal
I haven’t fully tested, but I suspect I would have seen breakage already if the rounding were inconsistent across GPUs, due to the way the antialiasing works.
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Replying to @andreasgal
I’m using highp so IEEE 754 compliance is mandatory in the fragment shader. So blend and quantization are the only possible issues. Pathfinder requires that both be precise, so I suspect I would have seen breakage if there were identifiable differences.
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D3D requires that the rounding go a certain way: https://docs.microsoft.com/en-us/windows/desktop/direct3d10/d3d10-graphics-programming-guide-resources-data-conversion … So I expect that implementations behave the same way.
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