Rendering method and apparatus, and method and apparatus for smoothing intensity-value
US5936633A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Jul 23, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/87
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In order to render a three-dimensional space which has a spotlight source with a cone angle .theta. at high speed and with better quality, an object's surface in the three-dimensional space is first meshed into a plurality of elements. Then, a radiosity from the spotlight source is calculated for each element which is included inside of the cone angle .theta. when viewed from the spotlight source. Thereafter, an intensity-value at each vertex of each element is calculated from the radiosity calculated for each element. Next, Gouraud shading is performed by using the intensity-value at each vertex of each element, and the result is displayed on a display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.