Method and apparatus for shading images
US5063375A · kind A · utility
59Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1989 |
| Grant date | Nov 5, 1991 |
| Priority date | — |
| Expiry date | Sep 18, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/87
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides unique methods and apparatus for shading curves, polygons and patches, implementing Phong, Gouraud and other shading techniques in the rendering of images on a cathode ray tube or other display device. The present invention also includes a unique method and apparatus for shading patches by rendering a series of adjacent curves such that no pixel gaps exist between each rendered curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.