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gl_GlobalInvocationID — contains the global index of work item currently being operated on by a compute shader


in uvec3 gl_GlobalInvocationID ;


In the compute language, gl_GlobalInvocationID is a derived input variable containing the n-dimensional index of the work invocation within the global work group that the current shader is executing on. The value of gl_GlobalInvocationID is equal to gl_WorkGroupID * gl_WorkGroupSize + gl_LocalInvocationID.

Version Support

OpenGL ES Shading Language Version
Function Name 1.00 3.00 3.10
gl_GlobalInvocationID - -
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