Velocity-based Adaptivity of Deformable Models

Maxime Tournier 1, 2 Matthieu Nesme 3 François Faure 3 Benjamin Gilles 4, 2
1 DEMAR - Artificial movement and gait restoration
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier, CRISAM - Inria Sophia Antipolis - Méditerranée
3 IMAGINE - Intuitive Modeling and Animation for Interactive Graphics & Narrative Environments
Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann, INPG - Institut National Polytechnique de Grenoble
4 ICAR - Image & Interaction
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : A new adaptive model for viscoelastic solids is presented. Unlike previous approaches, it allows seamless transitions, and simpli-fications in deformed states. The deformation field is generated by a set of physically animated frames. Starting from a fine set of frames and mechanical energy integration points, the model can be coarsened by attaching frames to others, and merging integration points. Since frames can be attached in arbitrary relative positions, simplifications can occur seamlessly in deformed states, without returning to the original shape, which can be recovered later after refinement. We propose a new class of velocity-based simplification criterion based on relative velocities. Integration points can be merged to reduce the computation time even more, and we show how to maintain continuous elastic forces through the levels of detail. Such meshless adaptivity allows significant improvements of computation time during simulations. It also provides a natural approach to coarse-to-fine deformable mesh registration.
Type de document :
Article dans une revue
Computers and Graphics, Elsevier, 2014, 45, pp.75 - 85. 〈10.1016/j.cag.2014.08.004〉
Liste complète des métadonnées

Littérature citée [18 références]  Voir  Masquer  Télécharger


https://hal.inria.fr/hal-01076338
Contributeur : Matthieu Nesme <>
Soumis le : vendredi 5 décembre 2014 - 10:04:57
Dernière modification le : jeudi 24 mai 2018 - 15:59:23
Document(s) archivé(s) le : lundi 9 mars 2015 - 06:02:17

Fichiers

si-gi-2014.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Maxime Tournier, Matthieu Nesme, François Faure, Benjamin Gilles. Velocity-based Adaptivity of Deformable Models. Computers and Graphics, Elsevier, 2014, 45, pp.75 - 85. 〈10.1016/j.cag.2014.08.004〉. 〈hal-01076338〉

Partager

Métriques

Consultations de la notice

800

Téléchargements de fichiers

651