Multiresolution geometry caching based on ray differentials with modifications
US7199795B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2005 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | May 21, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/36
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for rendering a plurality of objects. The method includes receiving ray differential information associated with a ray, determining a first ray differential based on at least information associated with the ray and a first surface patch, processing information associated with the first ray differential and the first surface patch, determining a first resolution based on at least information associated with the first ray differential and the first surface patch, and selecting a second resolution from the plurality of predetermined resolutions. Additionally, the method includes obtaining a first geometry representation associated with the second resolution. Moreover, the method includes if the second resolution is finer than the first resolution, selecting a third resolution from the plurality of predetermined resolutions, obtaining a second geometry representation associated with the third resolution, generating a third geometry representation, and determining whether the ray and the first surface patch intersect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.