3D graphics processing method
US7330182B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2005 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Aug 22, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A 3D-graphics processing method for processing 3D objects in a computer system defines a visible region having a far plane and a near plane. A clipping process is performed for a first object lying across the near plane while a second object lying across the far plane is exempted from the clipping process. In stead, the second object is performed with a rendering process as a whole to obtain a plurality of pixels. The depth values of the pixels are then compared with a depth value of the far plane. For any of the pixels having a depth value greater than the depth value of the far plane, it is discarded from display. On the other hand, any of the pixels of the first object not blocked by other pixels in front thereof and having a depth value smaller than the depth value of the far plane is outputted for display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.