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dc.contributor.authorAndújar Gran, Carlos Antonio
dc.contributor.authorSaona Vázquez, Carlos Luis
dc.contributor.authorNavazo Álvaro, Isabel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics
dc.date.accessioned2011-04-11T10:54:38Z
dc.date.available2011-04-11T10:54:38Z
dc.date.created2000-11
dc.date.issued2000-11
dc.identifier.citationAndújar, C.; Saona , C.; Navazo, I. LOD visibility culling and occluder synthesis. "Computer-aided design", Novembre 2000, vol. 32, núm. 13, p. 773-783.
dc.identifier.issn0010-4485
dc.identifier.urihttp://hdl.handle.net/2117/12332
dc.description.abstractLevel-of-detail occlusion culling is a novel approach to the management of occluders that can be easily integrated into most current visibility culling algorithms. The main contribution of this paper is an algorithm that automatically generates sets of densely overlapping boxes with enhanced occlusion properties from non-convex subsets. We call this method occluder synthesis because it is not sensitive to the way the objects are tesselated but to the space enclosed by them. The extension of this technique by allowing a bounded amount of image error is also discussed. We show that visibility computations can be based on a multiresolution model which provides several representations of these occluders with varying visibility accuracy. Our tests show that occlusion performance in tesselated scenes is improved severely even if no image-error is allowed.
dc.format.extent11 p.
dc.language.isoeng
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Informàtica::Infografia
dc.subject.lcshRendering (Computer graphics)
dc.subject.lcshSet theory
dc.subject.lcshReal-time data processing
dc.subject.otherReal-time systems
dc.subject.otherVisibility
dc.titleLOD visibility culling and occluder synthesis
dc.typeArticle
dc.subject.lemacConjunts, Teoria de
dc.subject.lemacTemps real (Informàtica)
dc.contributor.groupUniversitat Politècnica de Catalunya. MOVING - Grup de Recerca en Modelatge, Interacció i Visualització en Realitat Virtual
dc.identifier.doi10.1016/S0010-4485(00)00067-1
dc.rights.accessOpen Access
drac.iddocument1640103
dc.description.versionPostprint (author’s final draft)
upcommons.citation.authorAndújar, C.; Saona , C.; Navazo, I.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameComputer-aided design
upcommons.citation.volume32
upcommons.citation.number13
upcommons.citation.startingPage773
upcommons.citation.endingPage783


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