startOfFragmentSampleIndex
The index the Metal device object should use to store GPU counters when starting the render pass’s fragment stage.
Declaration
var startOfFragmentSampleIndex: Int { get set }Mentioned in
Discussion
Specify MTLCounterDontSample if you don’t want to sample GPU counters at the start of the fragment stage. Otherwise, specify an index within the sample buffer where you want the GPU to write the sample data.
On devices that don’t support MTLCounterSamplingPoint.atStageBoundary you need to set the value to MTLCounterDontSample.