HAL - INRIA :: [inria-00149706, version 3] Eulerian Contact for Versatile Collision Processing

inria-00149706, version 3

%% inria-00149706, version 3
%% http://hal.inria.fr/inria-00149706/en/
@techreport{FAURE:2007:INRIA-00149706:3,
    HAL_ID = {inria-00149706},
    URL = {http://hal.inria.fr/inria-00149706/en/},
    title = { {E}ulerian {C}ontact for {V}ersatile {C}ollision {P}rocessing},
    author = {{F}aure, {F}ran{\c{c}}ois and {A}llard, {J}{\'e}r{\'e}mie and {N}esme, {M}atthieu},
    abstract = {{W}e propose a new approach for collision modeling in physically based animation. {C}ontrary to most current approaches, our method can be used with all physical models rather than any specific class. {A}t each time step, the geometry of the bodies is mapped to a sparse regular {E}ulerian grid. {E}ach grid point carries a mass, a velocity and a spatial density. {T}his grid acts as a common mechanical layer where detection, modeling and reaction to collision take place, without any assumption about the internal dynamics of the bodies in contact. {M}appings are then used to propagate penalty- and constraint-based reactions back to the bodies. {W}e show that mappings can be easily set up for the most commonly used physical models. {O}ur approach greatly simplifies the implementation of collision modeling since we only have to consider each body's individual mapping to the {E}ulerian grid, rather than numerous model pair-specific methods. {M}oreover, it allows us to design and reuse efficient collision response strategies independently of the physical models. {W}e demonstrate our method with a variety of models including rigid bodies, deformable solids and fluids.},
    keywords = {collision, contact, simulation, physically based animation},
    language = {{A}nglais},
    affiliation = {{L}aboratoire {J}ean {K}untzmann - {LJK} - {CNRS} : {UMR}5224 - {U}niversit{\'e} {J}oseph {F}ourier - {G}renoble {I} - {U}niversit{\'e} {P}ierre {M}end{\`e}s-{F}rance - {G}renoble {II} - {I}nstitut {P}olytechnique de {G}renoble - {U}niversit{\'e} {J}oseph {F}ourier - {UJF} - {U}niversit{\'e} {J}oseph {F}ourier - {G}renoble {I} - {EVASION} - {INRIA} {R}h{\^o}ne-{A}lpes / {LJK} {L}aboratoire {J}ean {K}untzmann - {CNRS} : {UMR}5224 - {INRIA} - {L}aboratoire {J}ean {K}untzmann - {I}nstitut {N}ational {P}olytechnique de {G}renoble - {INPG} - {U}niversit{\'e} {J}oseph {F}ourier - {G}renoble {I} - {U}niversit{\'e} {P}ierre {M}end{\`e}s-{F}rance - {G}renoble {II} - {C}enter for {I}ntegration of {M}edicine \& {I}nnovative {T}echnology - {CIMIT} - {M}assachussets {G}eneral {H}ospital - {MIT} {L}aboratory for {C}omputer {S}cience },
    pages = {23 },
    type = {Research Report},
    institution = {INRIA},
    number = {{RR}-6203},
    year = {2007},
    URL = {http://hal.inria.fr/inria-00149706/PDF/EulerianContact.pdf},
}

%F inria-00149706, version 3
%0 Report
%U http://hal.inria.fr/inria-00149706/en/
%2 INFO:INFO_GR
%T Eulerian Contact for Versatile Collision Processing
%A Faure, François
%A Allard, Jérémie
%A Nesme, Matthieu
%+ Laboratoire Jean Kuntzmann - LJK - CNRS : UMR5224 - Université Joseph Fourier - Grenoble I - Université Pierre Mendès-France - Grenoble II - Institut Polytechnique de Grenoble - Université Joseph Fourier - UJF - Université Joseph Fourier - Grenoble I - EVASION - INRIA Rhône-Alpes / LJK Laboratoire Jean Kuntzmann - CNRS : UMR5224 - INRIA - Laboratoire Jean Kuntzmann - Institut National Polytechnique de Grenoble - INPG - Université Joseph Fourier - Grenoble I - Université Pierre Mendès-France - Grenoble II - Center for Integration of Medicine & Innovative Technology - CIMIT - Massachussets General Hospital - MIT Laboratory for Computer Science
%X We propose a new approach for collision modeling in physically based animation. Contrary to most current approaches, our method can be used with all physical models rather than any specific class. At each time step, the geometry of the bodies is mapped to a sparse regular Eulerian grid. Each grid point carries a mass, a velocity and a spatial density. This grid acts as a common mechanical layer where detection, modeling and reaction to collision take place, without any assumption about the internal dynamics of the bodies in contact. Mappings are then used to propagate penalty- and constraint-based reactions back to the bodies. We show that mappings can be easily set up for the most commonly used physical models. Our approach greatly simplifies the implementation of collision modeling since we only have to consider each body's individual mapping to the Eulerian grid, rather than numerous model pair-specific methods. Moreover, it allows us to design and reuse efficient collision response strategies independently of the physical models. We demonstrate our method with a variety of models including rigid bodies, deformable solids and fluids.
%2 I.: Computing Methodologies/I.3: COMPUTER GRAPHICS/I.3.7: Three-Dimensional Graphics and Realism/I.3.7.0: Animation, I.: Computing Methodologies/I.6: SIMULATION AND MODELING/I.6.8: Types of Simulation/I.6.8.0: Animation, I.: Computing Methodologies/I.6: SIMULATION AND MODELING/I.6.8: Types of Simulation/I.6.8.8: Visual
%G Anglais
%2 Rapport de recherche
%P 23
%8 2007
%K collision, contact, simulation, physically based animation
%2 2007
%2 RR-6203

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Eulerian Contact for Versatile Collision Processing

François Faure (

) ^1, 2, 3, Jérémie Allard (

) ⁴, Matthieu Nesme ^1, 2, 3

(2007)

Accès au texte intégral
PDF

Résumé : We propose a new approach for collision modeling in physically based animation. Contrary to most current approaches, our method can be used with all physical models rather than any specific class. At each time step, the geometry of the bodies is mapped to a sparse regular Eulerian grid. Each grid point carries a mass, a velocity and a spatial density. This grid acts as a common mechanical layer where detection, modeling and reaction to collision take place, without any assumption about the internal dynamics of the bodies in contact. Mappings are then used to propagate penalty- and constraint-based reactions back to the bodies. We show that mappings can be easily set up for the most commonly used physical models. Our approach greatly simplifies the implementation of collision modeling since we only have to consider each body's individual mapping to the Eulerian grid, rather than numerous model pair-specific methods. Moreover, it allows us to design and reuse efficient collision response strategies independently of the physical models. We demonstrate our method with a variety of models including rigid bodies, deformable solids and fluids.

Vignettes :

Annexes :

1 :	Laboratoire Jean Kuntzmann (LJK)
	CNRS : UMR5224 – Université Joseph Fourier - Grenoble I – Université Pierre Mendès-France - Grenoble II – Institut Polytechnique de Grenoble
2 :	Université Joseph Fourier (UJF)
	Université Joseph Fourier - Grenoble I
3 :	EVASION (INRIA Rhône-Alpes / LJK Laboratoire Jean Kuntzmann)
	CNRS : UMR5224 – INRIA – Laboratoire Jean Kuntzmann – Institut National Polytechnique de Grenoble - INPG – Université Joseph Fourier - Grenoble I – Université Pierre Mendès-France - Grenoble II
4 :	Center for Integration of Medicine & Innovative Technology (CIMIT)
	Massachussets General Hospital – MIT Laboratory for Computer Science

Domaine

Informatique/Synthèse d'image et réalité virtuelle

Mots-clés : collision – contact – simulation – physically based animation

Référence interne : RR-6203

Versions disponibles :

v1 (28-05-2007)

v2 (29-05-2007)

v3 (29-05-2007)


inria-00149706, version 3
http://hal.inria.fr/inria-00149706/fr/
oai:hal.inria.fr:inria-00149706
Contributeur : François Faure <>
Soumis le : Mardi 29 Mai 2007, 11:16:24
Dernière modification le : Mercredi 3 Novembre 2010, 15:11:25