Multifarious Hierarchies of Mechanical Models for Artist Assigned Levels-of-Detail

Richard Malgat; Benjamin Gilles; David Levin; Matthieu Nesme; François Faure

Multifarious Hierarchies of Mechanical Models for Artist Assigned Levels-of-Detail

Richard Malgat ^{1, 2} Benjamin Gilles ³ David Levin ⁴ Matthieu Nesme ² François Faure ²

1 RDP - Reproduction et développement des plantes

2 IMAGINE - Intuitive Modeling and Animation for Interactive Graphics & Narrative Environments

Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann, INPG - Institut National Polytechnique de Grenoble

3 ICAR - Image & Interaction

LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier

4 Disney Research

Abstract : We present a new framework for artist driven level of detail in solid simulations. Simulated objects are simultaneously embedded in several, separately designed deformation models with their own independent degrees of freedom. The models are ordered to apply their deformations hierarchically, and we enforce the uniqueness of the dynamics solutions using a novel kinetic filtering operator designed to ensure that each child only adds detail motion to its parent without introducing redundancies. This new approach allows artists to easily add fine-scale details without introducing unnecessary degrees-of-freedom to the simulation or resorting to complex geometric operations like anisotropic volume meshing. We illustrate the utility of our approach with several detail enriched simulation examples.

Keywords : Physically Based Animation Deformable Solid Multiscale Continuum Mechanics

Document type :

Conference papers

Domain :

Computer Science [cs] / Graphics [cs.GR]

Computer Science [cs] / Modeling and Simulation

Mathematics [math] / Numerical Analysis [math.NA]

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https://hal.inria.fr/hal-01172062
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Multifarious Hierarchies of Mechanical Models for Artist Assigned Levels-of-Detail

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2029

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