Computer graphics, parametric patch parallel subdivision processor
US4646251A · kind A · utility
78Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1985 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Oct 3, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system is disclosed for subdividing parametric patches for use in a computer graphics system to develop images. The system utilizes initial data, provided as by an interactive user, to represent control points for an initial patch from which the system rapidly computes control points for subpatches using parallel processors. The disclosed system is recursive so that each level of subdivision leads to greater refinement of an initial patch. In one embodiment, the processors in the system compute multiple control points, the grouping of processors exploiting patch symmetrical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.