1#version 450 2 3#extension GL_KHR_shader_subgroup_ballot: enable 4 5layout (local_size_x = 8, local_size_y = 8, local_size_z = 1) in; 6 7layout(binding = 0) buffer Buffers 8{ 9 vec4 f4; 10 ivec4 i4; 11 uvec4 u4; 12 dvec4 d4; 13} data[4]; 14 15void main() 16{ 17 uint invocation = (gl_SubgroupInvocationID + gl_SubgroupSize) % 4; 18 19 uvec4 relMask = gl_SubgroupEqMask + 20 gl_SubgroupGeMask + 21 gl_SubgroupGtMask + 22 gl_SubgroupLeMask + 23 gl_SubgroupLtMask; 24 25 uvec4 result = subgroupBallot(true); 26 27 data[invocation].u4.x = subgroupBallotBitCount(result); 28 data[invocation].u4.y = subgroupBallotBitExtract(result, 0) ? 1 : 0; 29 data[invocation].u4.z = subgroupBallotInclusiveBitCount(result) + subgroupBallotExclusiveBitCount(result); 30 data[invocation].u4.w = subgroupBallotFindLSB(result) + subgroupBallotFindMSB(result); 31 32 data[invocation].f4.x = subgroupBroadcast(data[0].f4.x, invocation); // ERROR: not constant 33} 34