Filtering for 3D scene rendering using ray divergence
US10026213B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2016 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Sep 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and techniques relating to scene rendering in computer graphics applications, such as rendering a scene using image based lighting, include a method including: performing, by a computer, ray tracing for a scene to be rendered by the computer, wherein performing the ray tracing include calculating a ray spread value for a ray propagated through the scene, the ray spread value being calculated based on a reflection geometry of at least one surface within the scene, and calculating a ray divergence value for the ray propagated through the scene, the ray divergence value being calculated based on one or more material properties of the at least one surface; defining, by the computer, a filter using both the calculated ray spread value and the calculated ray divergence value; and rendering, by the computer, the scene using the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.