The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 1997
Filed:
Jun. 08, 1995
Kyle R Berry, Fort Collins, CO (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
In a computer graphics system, per vertex depth cue scale factor values and depth cue rendering parameters are determined for the vertices of a triangle to be displayed. Interpolation circuitry determines a per pixel depth cue scale factor and per pixel color values for each of the pixels in the triangle. When the computer graphics system includes texture mapping hardware, a blending circuit combines the per pixel color values and the texture mapped color values to provide per pixel resulting color values. The per pixel depth cue scale factor value, the per pixel resulting color values and a depth cue color are used to determine per pixel depth cued color values for each of the pixels in the triangle. Accurate depth cueing is achieved with or without texture mapping.