Intel Corporation
Low granularity coarse depth test efficiency enhancement

Abstract:

Briefly, in accordance with one or more embodiments, an apparatus comprises a processor to compute depth values for one or more 4.times.4 blocks of pixels using 16 source interpolators and 8 destination interpolators on an incoming fragment of pixel data if the destination is in min/max format, and a memory to store a depth test result performed on the one or more 4.times.4 blocks of pixels. Otherwise the processor is to compute depth values for one or more 8.times.4 blocks of pixels using 16 source interpolators and 16 destination interpolators if the destination is in plane format.