1fa2c28ee1
This was mistakenly using dFdx in some portions (copy-paste error). Change-Id: Ifb159b3c44185d9166c10725b24002a28a0895b2 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/464381 Commit-Queue: John Stiles <johnstiles@google.com> Commit-Queue: Brian Osman <brianosman@google.com> Auto-Submit: John Stiles <johnstiles@google.com> Reviewed-by: Brian Osman <brianosman@google.com>
14 lines
600 B
Plaintext
14 lines
600 B
Plaintext
uniform half4 testInputs; // equals (-1.25, 0, 0.75, 2.25)
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uniform half4 colorGreen, colorRed;
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half4 main(float2 coords) {
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half4 expected = half4(0); // derivative of a constant is zero
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return (dFdy(testInputs.x) == expected.x &&
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dFdy(testInputs.xy) == expected.xy &&
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dFdy(testInputs.xyz) == expected.xyz &&
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dFdy(testInputs.xyzw) == expected.xyzw &&
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sign(dFdy(coords.xx)) == half2(0, 0) &&
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sign(dFdy(coords.yy)) == half2(1, 1) &&
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sign(dFdy(coords.xy)) == half2(0, 1)) ? colorGreen : colorRed;
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}
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