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mattorb/gist:4718078

Created February 5, 2013 21:50
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Eliminate dynamic branching in glsl - OpenGL ES 2.0
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gistfile1.txt
// Original w/branching
float result;
if(varA < varB)
{
result=100.0;
}
else
{
result=32.0;
}
// Removed dynamic branching
float aLessThanBThen0Else1 = clamp(sign(varA-varB), 0.0, 1.0);
float result = mix(100.0, 32.0, aLessThanBThen0Else1);
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