Intel Corporation

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Abhishek R Appu

Joydeep Ray

Altug Koker

Prasoonkumar Surti

Vasanth Ranganathan

Saurabh Sharma

Karol A Szerszen

Saikat Mandal

Vamsee Vardhan Chivukula

Aleksander Olek Neyman

Luis F Cruz Camacho

Akshay R Chada

Briefly, in accordance with one or more embodiments, a processor performs a coarse depth test on pixel data, and performs a final depth test on the pixel data. Coarse depth data is stored in a coarse depth cache, and per pixel depth data is stored in a per pixel depth cache. If a result of the coarse depth test is ambiguous, the processor is to read the per pixel depth data from the per pixel depth cache, and to update the coarse depth data with the per pixel depth data if the per pixel depth data has a smaller depth range than the coarse depth data.

Hierarchical depth buffer back annotation

Hierarchical depth buffer back annotaton

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