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MatCap Decomposition for Dynamic Appearance Manipulation

hal.structure.identifierMelting the frontiers between Light, Shape and Matter [MANAO]
dc.contributor.authorZUBIAGA, Carlos J.
hal.structure.identifierUniversidad de Zaragoza = University of Zaragoza [Saragossa University] = Université de Saragosse
dc.contributor.authorMUÑOZ, Adolfo
hal.structure.identifierUniversité de Montréal [UdeM]
dc.contributor.authorBELCOUR, Laurent
hal.structure.identifierBarcelona Media [Barcelona] [BM]
dc.contributor.authorBOSCH, Carles
hal.structure.identifierMelting the frontiers between Light, Shape and Matter [MANAO]
dc.contributor.authorBARLA, Pascal
dc.date.accessioned2023-05-12T10:59:52Z
dc.date.available2023-05-12T10:59:52Z
dc.date.issued2015
dc.date.conference2015-06-24
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/182015
dc.description.abstractEnIn sculpting software, MatCaps (a shorthand for "Material Capture") are often used by artists as a simple and efficient way to design appearance. Similar to LitSpheres, they convey material appearance into a single image of a sphere, which can be easily transferred to an individual 3D object. Their main purpose is to capture plausible material appearance without having to specify lighting and material separately. However, this also restricts their usability, since material or lighting cannot later be modified independently. Manipulations as simple as rotating lighting with respect to the view are not possible. In this paper, we show how to decompose a MatCap into a new representation that permits dynamic appearance manipulation. We consider that the material of the depicted sphere act as a filter in the image, and we introduce an algorithm that estimates a few relevant filter parameters interactively. We show that these parameters are sufficient to convert the input MatCap into our new representation, which affords real-time appearance manipulations through simple image re-filtering operations. This includes lighting rotations, the painting of additional reflections, material variations, selective color changes and silhouette effects that mimic Fresnel or asperity scattering.
dc.language.isoen
dc.title.enMatCap Decomposition for Dynamic Appearance Manipulation
dc.typeCommunication dans un congrès avec actes
dc.subject.halInformatique [cs]
dc.subject.halInformatique [cs]/Synthèse d'image et réalité virtuelle [cs.GR]
dc.subject.halInformatique [cs]/Recherche d'information [cs.IR]
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.countryDE
bordeaux.title.proceedingEurographics Symposium on Rendering 2015
bordeaux.conference.cityDarmstadt
bordeaux.peerReviewedoui
hal.identifierhal-01164590
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01164590v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2015&rft.au=ZUBIAGA,%20Carlos%20J.&MU%C3%91OZ,%20Adolfo&BELCOUR,%20Laurent&BOSCH,%20Carles&BARLA,%20Pascal&rft.genre=proceeding


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