Multi-stage fixed cycle pipe-lined lighting equation evaluator
US6611265B1 · kind B1 · utility
15Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2000 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Mar 24, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/506
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A lighting evaluation unit in a graphics processing system. The lighting evaluation unit includes a calculation unit having dot product circuitry used in determining specular, diffuse, spot, and attenuation components of a lighting equation in parallel. In one embodiment, the lighting evaluation unit is constructed in a pipeline manner, and includes multi-use circuitry for performing dot product calculations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.