System and method for generating shadows
US9639975B1 · kind B1 · utility
3Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2010 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Dec 17, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2215/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method for generating a shadow in a graphics scene. The method includes casting a ray having a finite length associated with a point on a surface of an object in the graphics scene towards a light source; determining whether the ray intersects any other objects in the graphics scene; and generating a shadow value associated with the point on the surface of the object based on a combination of geometric scene information obtained as a result of determining whether the ray intersects any other objects in the graphics scene and an image-based shadow map value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.