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Journal Articles Proceedings of the ACM on Computer Graphics and Interactive Techniques Year : 2020

A Time-independent Deformer for Elastic-rigid Contacts

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Abstract

We introduce a new tool that assists artists in deforming an elastic object when it comes in intersection with a rigid one. As opposed to methods that rely on time-resolved simulations, our approach is entirely based on time-independent geometric operators. It thus restarts from scratch at every frame from a pair of objects in intersection and works in two stages: the intersected regions are first matched and a contact region is identified on the rigid object; the elastic object is then deformed to match the contact while producing plausible bulge effects with controllable volume preservation. Our direct deformation approach brings several advantages to 3D animators: it provides instant feedback, permits non-linear editing, allows for the replicability of the deformation in different settings, and grants control over exaggerated or stylized bulging effects.
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Dates and versions

hal-02541299 , version 1 (15-04-2020)

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Camille Brunel, Pierre Bénard, Gael Guennebaud, Pascal Barla. A Time-independent Deformer for Elastic-rigid Contacts. Proceedings of the ACM on Computer Graphics and Interactive Techniques, 2020, 3 (1), pp.21. ⟨10.1145/3384539⟩. ⟨hal-02541299⟩
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