7 lines
No EOL
259 B
GLSL
7 lines
No EOL
259 B
GLSL
float Helper_SwizzleAdd(float x, float y, int mask)
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{
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vec4 xLut = vec4(1.0, -1.0, 1.0, 0.0);
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vec4 yLut = vec4(1.0, 1.0, -1.0, 1.0);
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int lutIdx = (mask >> (int($SUBGROUP_INVOCATION$ & 3u) * 2)) & 3;
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return x * xLut[lutIdx] + y * yLut[lutIdx];
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} |