Incremental frustum-cache acceleration of line integrals for volume rendering
US6677947B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2001 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Aug 1, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for rendering participating media effects is disclosed. At least one object having a surface is defined and a lattice, aligned with a camera, is also defined that encompasses the at least one object. A volumetric line integral is computed from the camera to lattice points in a neighborhood of a particular point on the surface of the object to obtain a value. The obtained value is filtered to obtain a volumetric line integral value for the particular point on the surface. Additionally, the set of values may be cached in memory and may be used in computing additional volumetric line integrals when applicable. The set of values determined for lattice points is filtered to determine the volumetric line integral value for a particular point on the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.