Inverse Z-buffer and video display system having list-based control mechanism for time-deferred instructing of 3D rendering engine that also responds to supervisory immediate commands
US5856829A · kind A · utility
106Cited by
3References
81Claims
0Family size
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Key dates
| Filing date | May 10, 1996 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | May 10, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A graphics system includes triangle-engine for real-time rendering into a displayable frame-buffer of image data derived from vertex-based deferred instructions. The system uses homogeneity values (1/w values) for z-buffer-like occlusion mapping as well as for texture mapping. Depth resolution is enhanced for both occlusion mapping and texture mapping by representing (1/w), (u/w) and (v/w) values in a block-fixed format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.