Article | SIGRAD 2008. The Annual SIGRAD Conference Special Theme: Interaction; November 27-28; 2008 Stockholm; Sweden | Adaptive resolution in physics based virtual environments

Title:
Adaptive resolution in physics based virtual environments
Author:
M. Servin: Umeå University, Sweden C. Lacoursière: Umeå University, Sweden F. Nordfelth: Algoryx Simulation, Sweden
Download:
Full text (pdf)
Year:
2008
Conference:
SIGRAD 2008. The Annual SIGRAD Conference Special Theme: Interaction; November 27-28; 2008 Stockholm; Sweden
Issue:
034
Article no.:
012
Pages:
47-52
No. of pages:
6
Publication type:
Abstract and Fulltext
Published:
2008-11-27
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


Export in BibTex, RIS or text

7We propose a systematic approach to adaptive resolution in physics based virtual environments (VEs) that combines the conventional requirements of realtime performance; visual appearance with important requirements on the physical simulation; such as accuracy and numerical robustness. In particular; we argue that adaptive resolution is a key element to achieve robustness in fixed time-step VEs. The idea is to adaptively substitute unstable subsystems with more simplified and robust models. The method is demonstrated on systems including stiff wires. The algorithm brings stability; realtime performance and preservation of the important physical invariants to the system. The application to general systems is discussed.

Keywords: Adaptive resolution; virtual environment; physics based animation; fixed time-step; numerical stability

SIGRAD 2008. The Annual SIGRAD Conference Special Theme: Interaction; November 27-28; 2008 Stockholm; Sweden

Author:
M. Servin, C. Lacoursière, F. Nordfelth
Title:
Adaptive resolution in physics based virtual environments
References:

AGX. Agx multiphysics toolkit. http://www.algoryx.se/. CARLSON; D. A.; AND HODGINS; J. K. 1997. Simulation levels of detail for real-time animation. In Proceedings of the conference on Graphics interface ’97; Canadian Information Processing Society; Toronto; Ont.; Canada; Canada; 1–8.


CHENNEY; S.; AND FORSYTH; D. 1997. View-dependent culling of dynamic systems in virtual environments. In SI3D ’97: Proceedings of the 1997 symposium on Interactive 3D graphics; ACM; New York; NY; USA; 55–58.


CLARK; J. H. 1976. Hierarchical geometric models for visible surface algorithms. Commun. ACM 19; 10; 547–554.


DEBUNNE; G.; DESBRUN; M.; CANI; M.-P.; AND BARR; A. H. 2001. Dynamic real-time deformations using space & time adaptive sampling. In SIGGRAPH ’01: Proceedings of the 28th annual conference on Computer graphics and interactive techniques; ACM; New York; NY; USA; E. Fiume; Ed.; ACM SIGGRAPH; 31–36.


FETTER; A.; AND WALECKA; J. D. 1980. Theoretical Mechanics of Particles and Continua. McGraw-Hill; 108–119.


GILLILAN; R. E.; AND WILSON; K. R. 1992. Shadowing; rare events; and rubber bands - a variational Verlet algorithm for molecular-dynamics. J. Chem. Phys. 97; 3; 1757–1772.


KHAREVYCH; L.; YANG; W.; TONG; Y.; KANSO; E.; MARSDEN; J. E.; SCHR¨ODER; P.; AND DESBRUN; M. 2006. Geometric; variational integrators for computer animation. In SCA ’06: Proceedings of the 2006 ACM SIGGRAPH/Eurographics symposium on Computer animation; Eurographics Association; Aire-la-Ville; Switzerland; Switzerland; ACM SIGGRAPH/ Eurographics; 43–51.


LACOURSI`E RE; C. 2007. Ghosts and Machines: Regularized Variational Methods for Interactive Simulations of Multibodies with Dry Frictional Contacts. PhD thesis; Department of Computing Science; Ume°a University; Sweden; SE-901 87; Ume°a; Sweden.


REDON; S.; GALOPPO; N.; AND LIN; M. C. 2005. Adaptive dynamics of articulated bodies. ACM; New York; NY; USA; vol. 24; 936–945.


SERVIN; M.; AND LACOURSI`ERE; C. 2007. Massless cable for real-time simulation. Computer Graphics Forum 26; 2; 172–184.


SERVIN; M.; AND LACOURSI`ERE; C. 2008. Rigid body cable for virtual environments. IEEE Transactions on Visualization 14; 4; 783–796.


SPILLMANN; J.; AND TESCHNER; M. 2008. An adaptive contact model for the robust simulation of knots. Computer Graphics Forum 27; 2; 497–506.

SIGRAD 2008. The Annual SIGRAD Conference Special Theme: Interaction; November 27-28; 2008 Stockholm; Sweden

Author:
M. Servin, C. Lacoursière, F. Nordfelth
Title:
Adaptive resolution in physics based virtual environments
Note: the following are taken directly from CrossRef
Citations:
No citations available at the moment