Method and apparatus for interpolative, adaptive illumination in 3D graphics
US6259454A · kind A · utility
1Cited by
5References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 11, 1998 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Aug 11, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of providing specular highlights to 3D graphics using Phong illumination calculations spaces the pixels subject to the calculations apart in direct relationship to the number of lights contributing to the highlights. Linear, quadratic, or cubic attenuation is then applied to interpolate the values for the pixels not subject to the calculations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.