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by kimixa 1498 days ago
Possibly pixel local storage - I think this can be accessed with extended raster order groups and image blocks in metal.

https://developer.apple.com/documentation/metal/resource_fun...

E.g in their example in the link above for deferred rendering (figure 4) the multiple G buffers won't actually need to leave the on-chip tile buffer - unless there's a partial render before the final shading shader is run.