Temporal antialiasing in a multisampling graphics pipeline
US7446780B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2004 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Jan 8, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Multisampling techniques provide temporal as well as spatial antialiasing. Coverage for a primitive is be determined at multiple sample locations for a pixel. In one embodiment, coverage is determined using boundary equations representing a boundary surface of the primitive in a three-dimensional space-time. A shading value for the primitive is computed for the pixel and stored for each coverage sample location of the pixel that is covered by the primitive. The sample locations are distributed in both space and time, and multiple sample locations share a single shading computation. The multisampling techniques are extendable to other dimensions that correspond to other image attributes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.