Stochastic sampling with constant density in object space for anisotropic texture mapping
US6400370B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1999 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Sep 10, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/001
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus, in a computer graphics display system, for producing Anisotropic Texture using constant density object space stochastic sampling. The approach of this invention uniformly samples the footprint of the pixel as mapped into a texture array to determine what complete and fractional texels are covered by the pixel's projected footprint. The sample density remains a constant and is determined by the area of the pixel footprint projection in texture space. Due to variations in footprint projections, each pixel may require a different number of samples, but the sample per texel density remains approximately constant. The intensity is the average of the sample points within the footprint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.