19 March 2004 Visibility preprocessing for complex 3D scenes using hardware-visibility queries
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Proceedings Volume 5444, Fourth International Conference on Virtual Reality and Its Applications in Industry; (2004) https://doi.org/10.1117/12.561105
Event: Fourth International Conference On Virtual Reality and Its Applications in Industry, 2003, Tianjin, China
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.
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Jaeho Kim, Jaeho Kim, HyungSeok Kim, HyungSeok Kim, KwangYun Wohn, KwangYun Wohn, "Visibility preprocessing for complex 3D scenes using hardware-visibility queries", Proc. SPIE 5444, Fourth International Conference on Virtual Reality and Its Applications in Industry, (19 March 2004); doi: 10.1117/12.561105; https://doi.org/10.1117/12.561105
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