3D graphics device
US6188409A · kind A · utility
3Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1998 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Sep 24, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device (1) for presenting 3D graphics comprises means for defining one or more polygons for objects to be presented, means (2, 3, 4) for bump mapping, which comprises means (6) for storing a bump map and means (5) for fetching the bump map from the bump map storing means (6), and means for defining a direction vector of bump map normal at each vertex of a polygon, and means (13, 14, 17, 18, 19) for rasterizing images on a display device. The device (1) comprises further means (7) for producing an angle value which is used to rotate the direction vector of the bump map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.