Non-linear Rough 2D Animation using Transient Embeddings

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dc.contributor.authorEven, Melvinen_US
dc.contributor.authorBĂ©nard, Pierreen_US
dc.contributor.authorBarla, Pascalen_US
dc.contributor.editorMyszkowski, Karolen_US
dc.contributor.editorNiessner, Matthiasen_US
dc.date.accessioned2023-05-03T06:10:58Z
dc.date.available2023-05-03T06:10:58Z
dc.date.issued2023
dc.description.abstractTraditional 2D animation requires time and dedication since tens of thousands of frames need to be drawn by hand for a typical production. Many computer-assisted methods have been proposed to automatize the generation of inbetween frames from a set of 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 the non-linear exploration of movements and dynamics in real-time.en_US
dc.description.number2
dc.description.sectionheaders2D Animation and Interaction
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume42
dc.identifier.doi10.1111/cgf.14771
dc.identifier.issn1467-8659
dc.identifier.pages411-425
dc.identifier.pages15 pages
dc.identifier.urihttps://doi.org/10.1111/cgf.14771
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf14771
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectCCS Concepts: Computing methodologies -> Graphics systems and interfaces; Animation
dc.subjectComputing methodologies
dc.subjectGraphics systems and interfaces
dc.subjectAnimation
dc.titleNon-linear Rough 2D Animation using Transient Embeddingsen_US
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