Rendering of non-opaque media using the p-buffer to account for polarization parameters
US5526471A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1993 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Dec 15, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/503
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for determining and applying the effect of light polarization on the rendering of graphics objects. A polarization state buffer is provided to maintain polarization state on a pixel by pixel basis for each pixel in a frame buffer. As graphics objects are rendered the polarization state information is updated based on the underlying opaque surface, the polarization state of the light, and the characteristics of non-opaque objects being drawn. Pixel intensity is adjusted based on the degree of polarization, and the angle of the polarization axis. An approximation of the pixel intensity function is implemented using standard hardware logic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.