An Animation System for Fracturing of Rigid Objects

  • Ayşe Küçükyılmaz
  • Bülent Özgüç
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3733)

Abstract

This paper describes a system for the animation of fracturing brittle objects. The system combines rigid body simulation methods with a constraint-based model to animate fracturing of arbitrary polyhedral shaped objects under impact. The objects are represented as sets of masses, where pairs of adjacent masses are connected via a distance-preserving linear constraint. Lagrange multipliers are used to compute the forces exerted by those constraints, where these forces determine how and where the object will break. However, a problem with existing systems is that the initial body models exhibit well-defined uniformity, which makes the generated animations unrealistic. This work introduces a method for generating more realistic cracks without any performance loss. This method is easy to implement and applicable on different models.

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References

  1. 1.
    Baraff, D.: Analytical Methods for Dynamic Simulation of Non-penetrating Rigid Bodies. In: SIGGRAPH 1989 Conference Proceedings, pp. 223–237 (1989)Google Scholar
  2. 2.
    Baraff, D.: Fast Contact Force Computation for Non-penetrating Rigid Bodies. In: SIGGRAPH 1994 Conference Proceedings, pp. 23–34 (1994)Google Scholar
  3. 3.
    Baraff, D.: Non-Penetrating Rigid Body Simulation. In: Eurographics 1993 State of the Art Repors (1993)Google Scholar
  4. 4.
    Baraff, D.: Physically Based Modeling: Principles and Practice, Chapter Rigid Body Simulation. In: SIGGRAPH 2001 Course Notes, ACM SIGGRAPH (2001)Google Scholar
  5. 5.
    Mirtich, B.: Impulse-based Dynamic Simulation of Rigid Body Systems, Ph.D. Thesis. University of California, Berkeley (1996)Google Scholar
  6. 6.
    Moore, M., Wilhelms, J.: Collision Detection and Response for Computer Animation. ACM Computer Graphics 22(4), 289–298 (1998)CrossRefGoogle Scholar
  7. 7.
    O’Brien, J.F., Hodgins, J.: Animating Fracture. Communications of the ACM 43(7) (2000)Google Scholar
  8. 8.
    O’Brien, J.F., Hodgins, J.: Graphical Modeling and Animation of Brittle Fracture. In: SIGGRAPH 1999 Conference Proceedings, vol. 33, pp. 287–296 (1999)Google Scholar
  9. 9.
    Press, W.H., Flannery, B.P., Teukolsky, S.A., Vetterling, W.T.: Numerical Recipes in C; The Art of Scientific Computing, 1st edn. Cambridge University Press, Cambridge (1992)MATHGoogle Scholar
  10. 10.
    Shcöberl, J.: NETGEN - 4.3 (2003), www.sfb013.uni-linz.ac.at/~joachim/netgen/
  11. 11.
    Shewchuk, J.R.: An Introduction to the Conjugate Gradient Method Without the Agonizing Pain. Computer Science Tech. Report 94-125, Carnegie Mellon University, Pittsburgh, PA (1994), see also, http://www.cs.cmu.edu/~quake/papers.html
  12. 12.
    Smith, J., Witkin, A., Baraff, D.: Fast and Controllable Simulation of the Shattering of Brittle Objects. Graphical Interface, Montreal, Canada (2000)Google Scholar
  13. 13.
    Terzopoulos, D., Fleischer, K.: Modeling Inelastic Deformation: Viscoelasticity, Plasticity, Fracture. In: SIGGRAPH 1988 Conference Proceedings, vol. 22, pp. 287–296 (1988)Google Scholar
  14. 14.
    Witkin, A., Baraff, D.: Physically Based Modeling: Principles and Practice, Chapter Differential Equation Basics. In: SIGGRAPH 2001 Course Notes, ACM SIGGRAPH (2001)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Ayşe Küçükyılmaz
    • 1
  • Bülent Özgüç
    • 1
  1. 1.Department of Computer EngineeringBilkent UniversityAnkaraTurkey

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