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} data[4]; 13 14void main() 15{ 16 uint invocation = (gl_SubgroupInvocationID + gl_SubgroupSize) % 4u; 17 18 uvec4 relMask = gl_SubgroupEqMask + 19 gl_SubgroupGeMask + 20 gl_SubgroupGtMask + 21 gl_SubgroupLeMask + 22 gl_SubgroupLtMask; 23 24 uvec4 result = subgroupBallot(true); 25 26 data[0].u4.x = subgroupBallotBitCount(result); 27 data[0].u4.y = subgroupBallotBitExtract(result, 0) ? 1u : 0u; 28 data[0].u4.z = subgroupBallotInclusiveBitCount(result) + subgroupBallotExclusiveBitCount(result); 29 data[0].u4.w = subgroupBallotFindLSB(result) + subgroupBallotFindMSB(result); 30 31 data[1].f4.x = subgroupBroadcast(data[0].f4.x, invocation); // ERROR: not constant 32} 33