Warren Moore

@warrenm How to best implement a histogram using Metal compute functions? Any examples / documentation on that?

@warrenm @bitCycle, are you trying to beat https://developer.apple.com/library/tvos/documentation/MetalPerformanceShaders/Reference/MPSImageHistogram_ClassReference/index.html#//apple_ref/occ/cl/MPSImageHistogram … ? Seems like it would consist of atomic per-pixel adds, then normalize?

@jessyMeow @warrenm I'm not trying to reinvent / beat anything :) My goal is something else, but first want to study impl of similar things.

@jessyMeow @warrenm Ie, my intention is to learn things. But could use more docs & exsamples. How to do atomic per pixel adds for example?

@bitCycle @warrenm atomic_fetch_add_explicit under “Atomic Functions”, w/1 atomic_uint per-value is what I imagined. https://developer.apple.com/library/ios/documentation/Metal/Reference/MetalShadingLanguageGuide/std-lib/std-lib.html …

@jessyMeow @warrenm Thanks! I'll try to figure things out and experiment. The docs are a bit too terse for me though ...