Abstract
n interactive physical simulation, contact forces are applied to prevent rigid bodies from penetrating each other. Accurate contact force determination is a computationally hard problem. Thus, in practice one trades accuracy for performance. The result is visual artifacts such as viscous or damped contact response. In this paper, we present a new approach to contact force determination. We reformulate the contact force problem as a nonlinear root search problem, using a Fischer function. We solve this problem using a generalized Newton method. Our new Fischer - Newton method shows improved qualities for specific configurations where the most widespread alternative, the Projected Gauss-Seidel method, fails. Experiments show superior convergence properties of the exact Fischer - Newton method.
| Original language | English |
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| Title of host publication | VRIPHYS 09 : 6th Workshop on Virtual Reality Interactions and Physical Simulations |
| Publication date | 2009 |
| Pages | 105-114 |
| ISBN (Print) | 978-3-905673-73-9 |
| DOIs | |
| Publication status | Published - 2009 |
| Event | 6th Workshop on Virtual Reality Interaction and Physical Simulation VRIPHYS 09 - Karlsruhe, Germany Duration: 5 Nov 2009 → 6 Nov 2009 Conference number: 6 |
Conference
| Conference | 6th Workshop on Virtual Reality Interaction and Physical Simulation VRIPHYS 09 |
|---|---|
| Number | 6 |
| Country/Territory | Germany |
| City | Karlsruhe |
| Period | 05/11/2009 → 06/11/2009 |