Adding Dynamics to Sketch-based Character Animations

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dc.contributor.authorGuay, Martinen_US
dc.contributor.authorRonfard, Rémien_US
dc.contributor.authorGleicher, Michaelen_US
dc.contributor.authorCani, Marie-Pauleen_US
dc.contributor.editorErgun Aklemanen_US
dc.date.accessioned2015-06-22T07:06:50Z
dc.date.available2015-06-22T07:06:50Z
dc.date.issued2015en_US
dc.description.abstractCartoonists and animators often use lines of action to emphasize dynamics in character poses. In this paper, we propose a physically-based model to simulate the line of action's motion, leading to rich motion from simple drawings. Our proposed method is decomposed into three steps. Based on user-provided strokes, we forward simulate 2D elastic motion. To ensure continuity across keyframes, we re-target the forward simulations to the drawn strokes. Finally, we synthesize a 3D character motion matching the dynamic line. The fact that the line can move freely like an elastic band raises new questions about its relationship to the body over time. The line may move faster and leave body parts behind, or the line may slide slowly towards other body parts for support. We conjecture that the artist seeks to maximize the filling of the line (with the character's body)-while respecting basic realism constraints such as balance. Based on these insights, we provide a method that synthesizes 3D character motion, given discontinuously constrained body parts that are specified by the user at key moments.en_US
dc.description.sectionheadersRendering and Modelingen_US
dc.description.seriesinformationSketch-Based Interfaces and Modelingen_US
dc.identifier.doi10.2312/exp.20151176en_US
dc.identifier.pages27-34en_US
dc.identifier.urihttps://doi.org/10.2312/exp.20151176en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectI.3.6 [Computer Graphics]en_US
dc.subjectMethodology and Techniquesen_US
dc.subjectInteraction techniquesen_US
dc.subjectI.3.7 [Computer Graphics]en_US
dc.subjectThree Dimensional Graphics and Realismen_US
dc.subjectAnimationen_US
dc.titleAdding Dynamics to Sketch-based Character Animationsen_US
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SBM15: Sketch Based Interfaces and Modeling 2015