Transparency group computation on a graphics processing unit
US7750922B2 · kind B2 · utility
3Cited by
7References
23Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 8, 2006 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Jul 7, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A new transparency group may be rendered and blended with other, previously rendered, transparency groups, by using the Porter-Duff algebra available on the GPU even though the transparency groups include pre-multiplied color and alpha information. Additionally, the number of copies of the back buffer (the image information for the previously rendered transparency groups) required to properly render, blend and combine the new transparency group into the image information of previously rendered transparency groups may be minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.