Computer graphics hidden surface removal system

Details Computer graphics hidden surface removal system Computer graphics hidden surface removal system

1988-05-09

1992-02-11

Harkcom, Gary V.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340729, G06F 1572

Patent

active

050880543

ABSTRACT:
A computer graphics hidden surface removal system and process are provided for processing a display list representing a plurality of objects to provide an image on a display device. A primary viewing volume is initially determined from a desired viewpoint by defining top, bottom, left side, right side, primary far and primary near clipping planes. The viewing volume is then divided into a plurality of slices including a first slice at the primary far clipping plane and a last slice at the primary near clipping plane. The other slices are in between. Signals representing portions of the objects found in each of the slices are loaded into a display memory buffer one slice at a time progressing sequentially through the slices starting with the first slice and ending with the last slice.

REFERENCES:
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patent: 3816726 (1974-06-01), Sutherland
patent: 3889107 (1975-06-01), Sutherland
patent: 4475104 (1984-10-01), Shen
patent: 4594673 (1986-06-01), Holly
patent: 4625289 (1986-11-01), Rockwood
patent: 4721952 (1988-01-01), Huber
patent: 4827413 (1989-05-01), Baldwin et al.

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