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Proceedings Paper

Visibility preprocessing for complex 3D scenes using hardware-visibility queries
Author(s): Jaeho Kim; HyungSeok Kim; KwangYun Wohn
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Paper Abstract

In cases of densely occluded urban scenes, it is effective to determine the visibility of scenes, since only small parts of the scene are visible from a given cell. In this paper, we introduce a new visibility preprocessing method that efficiently computes potentially visible objects for volumetric cells. The proposed method deals with general 3D polygonal models and invisible objects jointly blocked by multiple occluders. The proposed approach decomposes volume visibility into a set of point visibilities, and then computes point visibility using hardware-visibility queries, in particular HP-occlusion-test and NV-occlusion-query. We carry out experiments on various large-scale scenes, and show the performance of our algorithm.

Paper Details

Date Published: 19 March 2004
PDF: 13 pages
Proc. SPIE 5444, Fourth International Conference on Virtual Reality and Its Applications in Industry, (19 March 2004); doi: 10.1117/12.561105
Show Author Affiliations
Jaeho Kim, Korea Advanced Institude of Science and Technology (South Korea)
HyungSeok Kim, Korea Advanced Institude of Science and Technology (South Korea)
KwangYun Wohn, Korea Advanced Institude of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 5444:
Fourth International Conference on Virtual Reality and Its Applications in Industry
Jizhou Sun; Zhigeng Pan, Editor(s)

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