Planar z representation for z compression
US7382368B1 · kind B1 · utility
44Cited by
9References
12Claims
0Family size
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Key dates
| Filing date | Jun 28, 2004 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Apr 20, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T9/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A z buffer stores compressed z data represented in a planar format for one or more tiles. The compressed format includes a set of tile specific coefficients defining a plane equation for each z tested primitive intersecting the tile. The z buffer stores a maximum number of sets of tile specific coefficients for each tile, and when the maximum number of sets is exceeded for a particular tile, an uncompressed format is used to store the z data for the particular tile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.