Method and apparatus for processing translucent objects

Details Method and apparatus for processing translucent objects Method and apparatus for processing translucent objects

1989-07-18

1990-04-17

Harkcom, Gary V.

Boots, shoes, and leggings

340729, 340747, G06F 1562

Patent

active

049186256

ABSTRACT:
A method and apparatus for use in a computer image generator for providing translucency in the scene content of a video processed image as displayed on a cathode ray tube through subpixel processing. The method and apparatus considers the occulting problem of translucent surfaces in a typical computer image generated display. The apparatus and method thereof for processing a translucent object represented by a polygon surface utilizes creation of an array of flag bits per pixel representing a visible bed-of-nails of each polygon surface each of which has its own translucency factor. Each of the surface flag bit signals are processed to provide a logical union between the array of flag bits representing the translucent bed-of-nails of the visible portion of the surface and the array of flag bits stored in the bed-of-nails memory. The final resultant pixel display will be thus representative of the translucency intensities of the various surfaces processed.

REFERENCES:
patent: 4570233 (1986-02-01), Yan et al.
patent: 4615013 (1986-09-01), Yan et al.
patent: 4679040 (1987-07-01), Yan

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