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Non-linear Rough 2D Animation using Transient Embeddings

hal.structure.identifierMelting the frontiers between Light, Shape and Matter [MANAO]
dc.contributor.authorEVEN, Melvin
hal.structure.identifierMelting the frontiers between Light, Shape and Matter [MANAO]
dc.contributor.authorBÉNARD, Pierre
hal.structure.identifierMelting the frontiers between Light, Shape and Matter [MANAO]
dc.contributor.authorBARLA, Pascal
dc.date.accessioned2023-05-12T10:28:51Z
dc.date.available2023-05-12T10:28:51Z
dc.date.created2023
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/181351
dc.description.abstractEnTraditional 2D animation requires time and dedication since tens of thousands of frames need to be drawn by hand for a typicalproduction. Many computer-assisted methods have been proposed to automatize the generation of inbetween frames from a setof clean line drawings, but they are all limited by a rigid workflow and a lack of artistic controls, which is in the most part due to the one-to-one stroke matching and interpolation problems they attempt to solve. In this work, we take a novel view on those problems by focusing on an earlier phase of the animation process that uses rough drawings (i.e., sketches). Our key idea is to recast the matching and interpolation problems so that they apply to transient embeddings, which are groups of strokes that only exist for a few keyframes. A transient embedding carries strokes between keyframes both forward and backward in time through a sequence of transformed lattices. Forward and backward strokes are then cross-faded using their thickness to yield rough inbetweens. With our approach, complex topological changes may be introduced while preserving visual motion continuity.As demonstrated on state-of-the-art 2D animation exercises, our system provides unprecedented artistic control through thenon-linear exploration of movements and dynamics in real-time.
dc.description.sponsorshipStylisation du mouvement pour l'animation 2D - ANR-20-CE33-0002
dc.language.isoen
dc.rights.urihttp://creativecommons.org/licenses/by-nc/
dc.title.enNon-linear Rough 2D Animation using Transient Embeddings
dc.typeDocument de travail - Pré-publication
dc.subject.halInformatique [cs]
dc.subject.halInformatique [cs]/Synthèse d'image et réalité virtuelle [cs.GR]
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
hal.identifierhal-04006992
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04006992v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=EVEN,%20Melvin&B%C3%89NARD,%20Pierre&BARLA,%20Pascal&rft.genre=preprint


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