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Pyromuffin/Ballot example.hlsl

Last active July 19, 2018 01:14
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Ballot example.hlsl
[numthreads(64, 1, 1)]
void BallotExample(uint gtid : SV_GroupThreadID)
{
// assuming GCN architecture with WAVE_SIZE == 64
bool firstHalf = gtid < 32;
uint2 ballotResult = WaveActiveBallot(firstHalf);
// ballotResult == 0x0000 0000 FFFF FFFF in ALL threads.
}
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