Title of article :
Efficient conservative visibility culling using the prioritized-layered projection algorithm
Author/Authors :
Klosowski، نويسنده , , J.T.، نويسنده , , Silva، نويسنده , , C.T.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
Pages :
15
From page :
365
To page :
379
Abstract :
We propose a novel conservative visibility culling technique based on the Prioritized-Layered Projection (PLP) algorithm. PLP is a time-critical rendering technique that computes, for a given viewpoint, a partially correct image by rendering only a subset of the geometric primitives, those that PLP determines to be most likely visible. Our new algorithm builds on PLP and provides an efficient way of finding the remaining visible primitives. We do this by adding a second phase to PLP which uses image-space techniques for determining the visibility status of the remaining geometry. Another contribution of our work is to show how to efficiently implement such image-space visibility queries using currently available OpenGL hardware and extensions. We report on the implementation of our techniques on several graphics architectures, analyze their complexity, and discuss a possible hardware extension that has the potential to further increase performance.
Keywords :
Occlusion culling , interactive rendering. , Conservative visibility
Journal title :
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
Serial Year :
2001
Journal title :
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
Record number :
401705
Link To Document :
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