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Contains the index of the workgroup currently being operated on by a compute shader.



In the compute language,gl_WorkGroupIDcontains the 3-dimensional index of the global work group that the current compute shader invocation is executing within. The possible values range across the parameters passed intoglDispatchCompute, i.e., from (0, 0, 0) to (gl_NumWorkGroups.x- 1,gl_NumWorkGroups.y- 1,gl_NumWorkGroups.z- 1).

Version Support[edit]

gl_WorkGroupID 4.3+

See Also[edit]

 gl_NumWorkGroups , gl_WorkGroupID , gl_LocalInvocationID 


Copyright© 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999.