Occlusion culling method and apparatus for graphics systems

Details Occlusion culling method and apparatus for graphics systems Occlusion culling method and apparatus for graphics systems

2005-05-17

2005-05-17

Nguyen, Phu K. (Department: 2671)

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

Reexamination Certificate

active

06894689

ABSTRACT:
A system, method and computer program product are provided for avoiding reading z-values in a graphics pipeline. Initially, near z-values are stored which are each representative of a near z-value on an object in a region. Such region is defined by a tile and a coverage mask therein. Thereafter, the stored near z-values are compared with far z-values computed for other objects in the region. Such comparison indicates whether an object is visible in the region. Based on the comparison, z-values previously stored for image samples in the region are conditionally read from memory.

REFERENCES:
patent: 5764228 (1998-06-01), Baldwin
patent: 5914721 (1999-06-01), Lim
patent: 6094200 (2000-07-01), Olsen et al.
patent: 6172679 (2001-01-01), Lim
patent: 6226003 (2001-05-01), Akeley
patent: 6246415 (2001-06-01), Grossman et al.
patent: 6646639 (2003-11-01), Greene et al.
patent: 6674430 (2004-01-01), Kaufman et al.
patent: 6734861 (2004-05-01), Van Dyke et al.

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