Optimized shadows in a foveated rendering system
US11210807B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2020 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Jun 15, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2215/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for implementing a graphics pipeline. The method includes building a first shadow map of high resolution, and building a second shadow map based on the first shadow map of lower resolution. The method includes determining a light source affecting a virtual scene, and projecting geometries of objects of an image of the virtual scene onto a plurality of pixels of a display from a first point-of-view. The method includes determining a foveal region when rendering the image, wherein the foveal region corresponds to where an attention of a user is directed. The method includes determining a first set of geometries is drawn to a first pixel, determining the first set of geometries is in shadow based on the light source, and determining the first set of geometries is outside of the foveal region. The method includes rendering the first set of geometries using the second shadow map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.