gl_GlobalInvocationID.3G man page

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

Declaration

in uvec3 gl_GlobalInvocationID ;.SH "DESCRIPTION"

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

gl_GlobalInvocationID

See Also

gl_NumWorkGroups(), gl_WorkGroupID(), gl_WorkGroupSize(), gl_LocalInvocationID()

Info

02/04/2016 [FIXME: source] [FIXME: manual]