Methods and apparatus for rendering or preparing digital objects or portions thereof for subsequent processing
US7619624B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 24, 2005 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Sep 7, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for rendering images of digital objects or for preparing digital objects for subsequent processing. The method includes sorting data representative of the positions of at least three vertices of at least one polygon of a digital object, then determining whether the orientation of the vertices of each polygon from a specific reference point differs from the actual, or original, orientation of the vertices. Such a determination may be made by generating an orientation decision variable based on the relative positions of the vertices and calculating a cross product term (CPT) after the vertex data has been sorted. The CPT may also be used in other operations involving the polygon, such as in imparting appearance characteristics to the polygon. The method may be embodied as a computer program (i.e., software or firmware) that controls the operation of a processor. Accordingly, processors, computers, and systems that render images of digital objects in accordance with the method are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.