Methods and apparatus for rendering three-dimensional images
US6018347A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1997 |
| Grant date | Jan 25, 2000 |
| Priority date | — |
| Expiry date | Apr 10, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method for modeling a three-dimensional image with polygons having different levels of detail. The method includes initially modeling the three-dimensional image with a first plurality of polygons at a first level of detail. The first level of detail represent the coarsest level of detail available for modeling the three-dimensional image. The first plurality of polygons are provided as part of an input data set. The method further includes comparing a distance between a first polygon of the first plurality of polygons and an eye point to a predefined threshold distance value associated with a level of detail of the first polygon. If the distance is less than the predefined threshold distance value, the method substitutes in a second plurality of polygons for the first polygon. The second plurality of polygons are at a second level of detail higher than the first level of detail and computed in advance prior to a commencement of the initial modeling step and provided as part of the input data set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.