Culling nodes over a horizon using conical volumes
US8767011B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 17, 2011 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Oct 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/05
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An exemplary method includes determining a node having a drawable payload representing a surface portion of a curved three-dimensional model in a three-dimensional environment. The exemplary method also includes determining whether the virtual camera is located within a first substantially conical volume. The exemplary method further includes determining whether the virtual camera is located within a second substantially conical volume. The exemplary method also includes when the virtual camera is determined to be inside the first substantially conical volume and to be outside the second substantially conical volume, culling the node. The exemplary method further includes when the virtual camera is determined to be inside both the first substantially conical volume and the second substantially conical volume, rendering the drawable payload.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.