Anisotropic texture mapping using silhouette/footprint analysis in a computer image generation system
US6097397A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 20, 1997 |
| Grant date | Aug 1, 2000 |
| Priority date | — |
| Expiry date | Nov 20, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Anisotropically mapping of texture information to each pixel required for display of each of plural polygons forming each scene on a CIG display in a computational efficient manner, uses the footprint of each transformed pixel silhouette, as mapped from image space into the texture array, to determine an anisotropic texture space area having both a related length and a related width, in which complete texels and texels fractions are covered by that pixel footprint. A set of un-normalized line equations characterizing a particular pixel footprint is used to determine whether each texel or subtexel in the vicinity of that pixel footprint is either enclosed or avoided by (i.e. inside or outside of) that projected pixel footprint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.