Image generating apparatus and method of generating an image by parallel processing thread segments
US5583975A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1994 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Jan 24, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image generating apparatus used in the field of image processing such as Computer Graphics. The image generating apparatus comprises an input unit for setting data related to a shape of each polygon, an attribute-data-setting unit for setting physical-property attribute data of the polygons, a view-point-data setting unit for setting data related to a view point, a boundary-box-dividing unit for dividing a boundary box enclosing all the polygons into a set of voxels of equal-size with parameters for the boundary box and a linear conditional expression, a segment buffer for registering intersection data per segment for each light source consisting of a thread of a processor assigned for each segment on one polygon and a ray-intercepting polygon at the time of intensity computation per pixel, and an intensity computing unit for checking an intersection with the registered ray-intercepting polygon first when computing an adjacent pixel in the same segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.