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A Vectorial Solver for Free-form Vector Gradient

hal.structure.identifierMelting the frontiers between Light, Shape and Matter [MANAO]
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorBOYÉ, Simon
hal.structure.identifierMelting the frontiers between Light, Shape and Matter [MANAO]
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorBARLA, Pascal
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
hal.structure.identifierMelting the frontiers between Light, Shape and Matter [MANAO]
dc.contributor.authorGUENNEBAUD, Gael
dc.date.accessioned2023-05-12T10:25:33Z
dc.date.available2023-05-12T10:25:33Z
dc.date.issued2012-11-01
dc.identifier.issn0730-0301
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/181251
dc.description.abstractEnThe creation of free-form vector drawings as been greatly improved in recent years with techniques based on harmonic or bi-harmonic interpolation. Such methods offer the best trade-off between spar- sity (keeping the number of control points small) and expressivity (achieving complex shapes and gradients). Unfortunately, the lack of a robust and versatile method to compute such images still lim- its their use in real-world applications. In this paper, we introduce a vectorial solver for the computation of free-form vector gradi- ents. Based on Finite Element Methods (FEM), its key feature is to output a low-level vector representation suitable for very fast GPU accelerated rasterization and close-form evaluation. This interme- diate representation is hidden from the user: it is dynamically up- dated using FEM during drawing when control points are edited. Since it is output-insensitive, our approach enables novel possibili- ties for (bi)-harmonic vector drawings such as instancing, layering, deformation, texture and environment mapping. Finally, in this pa- per we also generalize and extend the set of drawing possibilities. In particular, we show how to locally control vector gradients.
dc.language.isoen
dc.publisherAssociation for Computing Machinery
dc.title.enA Vectorial Solver for Free-form Vector Gradient
dc.typeArticle de revue
dc.subject.halInformatique [cs]/Synthèse d'image et réalité virtuelle [cs.GR]
bordeaux.journalACM Transactions on Graphics
bordeaux.pagep.
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-00732992
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00732992v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=ACM%20Transactions%20on%20Graphics&rft.date=2012-11-01&rft.spage=p.&rft.epage=p.&rft.eissn=0730-0301&rft.issn=0730-0301&rft.au=BOY%C3%89,%20Simon&BARLA,%20Pascal&GUENNEBAUD,%20Gael&rft.genre=article


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