Occlusion culling method and rendering processing apparatus

Details Occlusion culling method and rendering processing apparatus Occlusion culling method and rendering processing apparatus

2011-05-24

2011-05-24

Hajnik, Daniel F (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

C345S421000

Reexamination Certificate

active

07948487

ABSTRACT:
A rendering processing apparatus is provided which performs occlusion culling for excluding from rendering targets a hidden object behind another object as seen from a point of view, when given a plurality of objects. An object input unit stores a plurality of objects in an object storing unit. An internal volume generating unit generates an internal volume which is included in a target object. A reduced Z-buffer updating unit updates a reduced Z-buffer based on the internal volume. An external volume generating unit generates an external volume which includes the target object subject to culling test. A culling determination unit consults the reduced Z-buffer and performs a Z culling test on the target object based on the external volume.

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