Volumetric ambient occlusion for volumetric models
dc.contributor.author
dc.date.accessioned
2016-04-14T08:13:00Z
dc.date.available
2016-04-14T08:13:00Z
dc.date.issued
2010
dc.identifier.issn
0178-2789
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dc.description.abstract
This paper presents new algorithms to compute ambient occlusion for volumetric data. Ambient occlusion is used in video-games and film animation to mimic the indirect lighting of global illumination. We extend a novel interpretation of ambient occlusion to volumetric models that measures how big portion of the tangent sphere of a surface belongs to the set of occluded points, and propose statistically robust estimates for the ambient occlusion value. The data needed by this estimate can be obtained by separable filtering of the voxel array. As ambient occlusion is meant to obtain global illumination effects, it can provide decisive clues in interpreting the data. The new algorithms obtain smooth shading and can be computed at interactive rates, being thus appropriate for dynamic models exploration
dc.description.sponsorship
This work was supported by TIN2007-68066-C04-01 and TIN2007-67982-C02 of the Ministry of Education and Science(Spanish Government) and by the 2009 SGR 643 from the Generalitat of Catalunya
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Springer Verlag
dc.relation
info:eu-repo/grantAgreement/MEC//TIN2007-68066-C04-01/ES/CONTENIDO INTELIGENTE PARA APLICACIONES DE REALIDAD VIRTUAL. TECNICAS DE PUNTO DE VISTA E ILUMINACION GLOBAL/
info:eu-repo/grantAgreement/MEC//TIN2007-67982-C02-02/ES/MODELADO, VISUALIZACION, ANIMACION Y ANALISIS DE ENTORNOS 3D ALTAMENTE COMPLEJOS EN SISTEMAS DE REALIDAD VIRTUAL INTERACTIVOS-UDG/
AGAUR/2009-2014/2009 SGR-643
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Versió postprint del document publicat a: http://dx.doi.org/10.1007/s00371-010-0497-z
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© Visual Computer, 2010, vol. 26, p. 687-695
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Articles publicats (D-IMA)
dc.rights
Tots els drets reservats
dc.title
Volumetric ambient occlusion for volumetric models
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.embargo.terms
Cap
dc.type.version
info:eu-repo/semantics/acceptedVersion
dc.identifier.doi
dc.identifier.idgrec
012132
dc.contributor.funder
dc.relation.ProjectAcronym
dc.identifier.eissn
1432-2315