Fast rendering of knockout groups using a depth buffer of a graphics processing unit
US8907979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2006 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jan 3, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2200/28
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method, system, and computer-readable storage medium are disclosed for rendering knockout groups using a graphics processing unit (GPU). Input comprising at least one knockout group may be received at the GPU. The knockout group may comprise a plurality of objects that are ordered by paint order. Each object may be represented in the input by a plurality of vertices. The plurality of objects may be drawn into a frame buffer of the GPU such that a topmost object at each pixel in the frame buffer determines a color and an opacity of the pixel with respect to the other objects in the knockout group. In drawing the plurality of objects of the knockout group into the frame buffer of the GPU, program code may be executed by the GPU.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.