Image element depth buffering using two buffers

Details Image element depth buffering using two buffers Image element depth buffering using two buffers

1991-08-08

1995-11-28

Jankus, Almis R.

395122, 395135, G06T 1700

Patent

active

054715679

ABSTRACT:
Depth buffered anti-aliasing in a real time image generation system utilizing two separate buffers, one for combining attributes of object pixel definitions which are of less than full coverage and another for storing the attributes of each new object pixel definition which is of full coverage and which is closer to the viewpoint than any attributes currently stored. If the depth value in the partial buffer is closer the viewpoint than that in the full buffer, a set of attributes is output which is a weighted mixture of those stored in the two buffers.

REFERENCES:
patent: 5075876 (1991-12-01), Seki et al.
patent: 5079698 (1992-01-01), Grenier et al.
Franklin C. Crow, "The Aliasing Problem in Computer-Generated Shaded Images"--Communications of the Association For Computer Machinery, vol. 20, No. 11, Nov. 1977, New York, US, pp. 799-805.
European Search Report in corresponding European Patent Application issued by European Patent Office on Oct. 18, 1993.

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