gl_LocalInvocationID

From OpenGL Reference
Jump to navigation Jump to search

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

Declaration[edit]

Description[edit]

In the compute language,gl_LocalInvocationIDis an input variable containing the n-dimensional index of the local work invocation within the work group that the current shader is executing in. The possible values for this variable range across the local work group size, i.e., (0,0,0) to (gl_WorkGroupSize.x- 1,gl_WorkGroupSize.y- 1,gl_WorkGroupSize.z- 1).


Version Support[edit]

gl_LocalInvocationID 4.3+

See Also[edit]

 gl_NumWorkGroups , gl_WorkGroupID , gl_WorkGroupSize , gl_GlobalInvocationID 


Copyright[edit]

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/.