Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Patent
1996-07-02
1998-11-03
Jankus, Almis R.
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
345425, G06T 1500
Patent
active
058316205
ABSTRACT:
A system and computer-based method for performing real-time mirror reflection of objects in a scene using a computer graphics system having a stencil buffer. The scene includes a background and a plurality of mirrors, and the stencil buffer comprises bits with initial values. A first level reflection mask is generated in the stencil buffer for the plurality of mirrors in the scene. Using the first level reflection mask, second level mirror reflections are determined, followed by first level mirror reflections, for each mirror in the scene. The first and second level mirror reflections are then drawn. Finally, the un-mirrored portions of the scene are drawn.
REFERENCES:
patent: 5266941 (1993-11-01), Akeley et al.
patent: 5526471 (1996-06-01), Tannenbaum et al.
James D. Foley et al., Computer Graphics Principles and Practice, Second Edition, Addision-Wesley Publishing Co., Chapter 15.10, 1990.
George Wolberg, Digital Image Warping, IEEE Computer Society Press, Chapter 7.2, 1990.
Jackie Neider et al., OpenGL Programming Guide, Addison-Wesley Publishing Co., pp. 287-289.
Jankus Almis R.
Silicon Graphics Incorporated
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