Comment # 2
on bug 103393
from Stephane Chevigny
The expected output: value[i].x (= gl_GlobalInvocationID.x ;) should be equal to value[i].y and value[i].w (= gl_WorkGroupID.x * gl_LocalGroupSizeARB.x + gl_LocalInvocationID.x;) for all indices i according to spec. With the parameter I gave to glDispatchComputeGroupSizeARB, the divergence of the result happen after the indice i = 63 on my computer. So value[i].x = value[i].z (=gl_LocalInvocationID.x;) instead. So on my computer, gl_GlobalInvocationID.x appear to be only equal to gl_LocalInvocationID.x notgl_WorkGroupID.x * gl_LocalGroupSizeARB.x + gl_LocalInvocationID.x or I misread the spec.
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