Primitive processing in a graphics processing system with tag buffer storage of primitive identifiers
US10679322B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 4, 2019 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Jan 4, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2200/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A graphics processing system has a rendering space which comprises one or more tiles. The system comprises a processing module configured to perform hidden surface removal for primitives of a tile to determine primitive identifiers identifying the primitives which are visible at each of a plurality of sample positions in the tile. A set of two or more tag buffers store the primitive identifiers determined for each of the sample positions in a tile, thereby representing overlapping layers of primitives. A tag control module controls: (i) selection of a tag buffer for the storage of each of the primitive identifiers according to the layering of the primitive identifiers stored in the tag buffers, and (ii) flushing of primitive identifiers from the tag buffers. A texturing engine applies texturing to the primitives identified by the flushed primitive identifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.