In the compute language, gl_NumWorkGroups contains the total number of work groups that will execute the compute shader. The components of gl_NumWorkGroups are equal to the num_groups_x, num_groups_y, and num_groups_z parameters passed to the glDispatchCompute command.
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OpenGL Shading Language Version
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| Variable Name | 1.10 | 1.20 | 1.30 | 1.40 | 1.50 | 3.30 | 4.00 | 4.10 | 4.20 | 4.30 | 4.40 |
4.50
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| gl_NumWorkGroups | - | - | - | - | - | - | - | - | - | ✔ | ✔ |
✔
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gl_WorkGroupSize(), gl_WorkGroupID(), gl_LocalInvocationID()
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