Computer graphics system having per pixel depth cueing

Details Computer graphics system having per pixel depth cueing Computer graphics system having per pixel depth cueing

1995-06-08

1997-12-30

Nguyen, Phu K.

G06F 1500

Patent

active

057040257

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.

REFERENCES:
patent: 5237650 (1993-08-01), Priem et al.
patent: 5287436 (1994-02-01), Fisher et al.

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