Three-dimensional graphic controller
US5831634A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 24, 1996 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Dec 24, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A three-dimensional computer graphic controller comprises a resistor for receiving information about the triangle, a Y-coordinate counter for fetching the stored information from the resistor and computing Y-coordinates of the triangle, an X-coordinate initial position adder for fetching an information about the first edge of the triangle from the resistor and computing an X-coordinate value of an initial position of the first edge, an X-coordinate width adder for fetching the information about the divided upper and lower triangles and computing individual widths of the triangle on the X-coordinate as well as for changing a variation in width on the X-coordinate between the divided upper and lower triangles, a color component adder for fetching the information about the triangle and individually computing red, green and blue components of the color of the triangle, a frame memory controller for fetching the Y-coordinates, the X-coordinate value of the start position and the individual widths triangle on the X-coordinate to control storing the same into a frame memory, and a line buffer with a capacity corresponding to a line for fetching the red, green and blue components from the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.