System and method of rendering polygons into a pixel grid
US5936635A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1996 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Jun 28, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A graphics system includes a graphics controller for rendering polygons with a minimum number of steps and registers. The graphics controller includes a register file for receiving initial parameters for the polygon from a host. The graphics controller also includes a polygon engine for loading parameters from the register file and using these parameters to generate a starting X value for each scan line and a width value for each scan line to permit efficient rendering of the polygon without "edge walking" the polygon. The polygon engine includes a counter and a pair of accumulators for defining the number of orthogonal scan lines, the X start value for each scan line, and the width of each scan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.