gl_LocalInvocationIndex.3G man page

gl_LocalInvocationIndex — contains the local linear index of work item currently being operated on by a compute shader

Declaration

in uint gl_LocalInvocationIndex ;.SH "DESCRIPTION"

In the compute language, gl_LocalInvocationIndex is 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 of gl_LocalInvocationIndex is equal to gl_LocalInvocationID.z * gl_WorkGroupSize.x * gl_WorkGroupSize.y + gl_LocalInvocationID.y * gl_WorkGroupSize.x + gl_LocalInvocationID.x.

Version Support

OpenGL Shading Language Version
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
gl_LocalInvocationIndex - - - - - - - - -

See Also

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

Info

07/26/2017 [FIXME: source] [FIXME: manual]