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Contains the local linear index of work item currently being operated on by a compute shader.



In the compute language,gl_LocalInvocationIndexis a derived input variable containing the 1-dimensional linearized index of the work invocation within the work group that the current shader is executing on. The value ofgl_LocalInvocationIndexis equal togl_LocalInvocationID.z*gl_WorkGroupSize.x*gl_WorkGroupSize.y+gl_LocalInvocationID.y*gl_WorkGroupSize.x+gl_LocalInvocationID.x.

Version Support[edit]

gl_LocalInvocationIndex 4.3+

See Also[edit]

 gl_NumWorkGroups , gl_WorkGroupID , gl_WorkGroupSize , 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.