Normal vector shading for 3-D graphics display system
US4901064A · kind A · utility
122Cited by
24References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1987 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Nov 4, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/506
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system is provided for application of a lighting model to a rasterized stream of pixels. The system typically includes a series of circuits, each for applying a lighting model to a single pixel. Each chip typically includes some memory sources for storing the lighting model, an input section connected to receive data indicative of the normal vector, Z depth, and material characteristics of the object represented by the pixel to be colored. A special purpose processor connected to the input then applies the lighting model to the pixel and supplies color value of the pixel as an output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.