Method for generating addresses to textured graphics primitives stored in rip maps
US5222205A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1990 |
| Grant date | Jun 22, 1993 |
| Priority date | — |
| Expiry date | Mar 16, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods for texture mapping graphics primitives in a graphics pipeline architecture system. The methods utilize rectangular box filters to down-sample original texture maps thereby optimizing aliasing and blurring when graphics primitives have a two-dimensional texture mapped to a three-dimensional object. The methods of texture mapping graphics primitives in a frame buffer graphics system comprise the steps of determining an original texture map of two dimensions for a surface, storing the original texture map in the frame buffer, sampling the original texture map independently using an asymmetrical filter to construct multiple versions of a texture and to address textured pixels on a display in the frame buffer graphics systems, mapping the textured pixels to areas on the frame buffer, and displaying the textured graphics primitives on the display. A technique for addressing textured pixels stored in a rectangular texture (RIP) map is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.