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NAME
       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
       ┌──────────────────────┬───────────────────────────────────────────────────────────────────────────────────┐
       │                      │        OpenGL Shading Language Version                                            │
       ├──────────────────────┼──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┤
       │Variable              │ 1.10 │ 1.20 │ 1.30 │ 1.40 │ 1.50 │ 3.30 │ 4.00 │ 4.10 │ 4.20 │ 4.30 │ 4.40 │ 4.50 │
       │Name                  │      │      │      │      │      │      │      │      │      │      │      │      │
       ├──────────────────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┤
       │gl_GlobalInvocationID │  -   │  -   │  -   │  -   │  -   │  -   │  -   │  -   │  -   │  ✔   │  ✔   │  ✔   │
       └──────────────────────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┘


SEE ALSO
       gl_NumWorkGroups(), gl_WorkGroupID(), gl_WorkGroupSize(), gl_LocalInvocationID()


COPYRIGHT
       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.
       http://opencontent.org/openpub/.


COPYRIGHT
       Copyright © 2012-2014 Khronos Group

[FIXME: source]                             01/03/2018                   GL_GLOBALINVOCATIONI(3G)