Microtexture for close-in detail

Details Microtexture for close-in detail Microtexture for close-in detail

1987-12-18

1990-11-27

Clark, David L.

Boots, shoes, and leggings

340729, G06F 1572, G06F 3153

Patent

active

049741764

ABSTRACT:
In a computer image generation system, as a viewpoint approaches a surface of an object and is closer than a predetermined threshold distance from the surface, a texture pattern obtained from cell data becomes fuzzy, and may not provide adequate motion cues for training, such as piloting an airplane. In accordance with the present invention, apparatus and method provide random data at a predetermined derived level of detail for combining with cell data to define the surface including texture of the object when the object is closer to the viewpoint than the threshold distance. The apparatus may be readily retrofitted into an existing system.

REFERENCES:
patent: 4371872 (1983-02-01), Rossman
patent: 4586038 (1986-04-01), Sims et al.
patent: 4615013 (1986-09-01), Yan et al.
patent: 4692880 (1987-09-01), Merz et al.
patent: 4727365 (1988-02-01), Bunker et al.
patent: 4788572 (1988-05-01), Latham

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