Bibliography

[CH+97] Simulation Levels of Detail for Real-time Animation

Carlson.gi97 (In proceedings)
Author(s)	Carlson, Deborah A. and Hodgins, Jessica K.
Title	« Simulation Levels of Detail for Real-time Animation »
In	Graphics Interface '97
Editor(s)	Davis, Wayne A. and Mantei, Marilyn and Klassen, R. Victor
Page(s)	1--8
Year	1997
Publisher	Canadian Human-Computer Communications Society

Carlson.gi97 (In proceedings)

Author(s)

Carlson, Deborah A. and Hodgins, Jessica K.

Title

« Simulation Levels of Detail for Real-time Animation »

Graphics Interface '97

Editor(s)

Davis, Wayne A. and Mantei, Marilyn and Klassen, R. Victor

Page(s)

1--8

Year

1997

Publisher

Canadian Human-Computer Communications Society

Abstract & Keywords
When sufficient computing power is available, dynamic simulation can be used as a source of motion for real-time, interactive virtual environments. In this paper, we explore techniques for reducing the computational cost of simulating groups of creatures by using less accurate simulations for individuals when they are less important to the viewer or to the action in the virtual world. The less accurate, or lower level of detail, simulations can be dynamic with fewer degrees of freedom, hybrid kinematic/dynamic, or purely kinematic. As a test of the effectiveness of this approach, we implemented an environment with dynamically simulated legged creatures. Because the creatures switch smoothly among different levels of detail for the underlying simulation, we can achieve real-time performance for a larger group of creatures than would be possible if each creature were dynamically simulated. To be useful in this test case, the method must meet two criteria: the outcome of the game must be essentially unchanged and the viewer's perception of the motion must be the same. While it is not possible to make definitive measurements of these criteria, we asses the performance gain from using different levels of details and make a preliminary assessment of the effect that the decreased accuracy has on the outcome of the sample game. Keywords: level of detail, dynamic simulation, real-time simulation

Abstract & Keywords

When sufficient computing power is available, dynamic simulation can be used as a source of motion for real-time, interactive virtual environments. In this paper, we explore techniques for reducing the computational cost of simulating groups of creatures by using less accurate simulations for individuals when they are less important to the viewer or to the action in the virtual world. The less accurate, or lower level of detail, simulations can be dynamic with fewer degrees of freedom, hybrid kinematic/dynamic, or purely kinematic. As a test of the effectiveness of this approach, we implemented an environment with dynamically simulated legged creatures. Because the creatures switch smoothly among different levels of detail for the underlying simulation, we can achieve real-time performance for a larger group of creatures than would be possible if each creature were dynamically simulated. To be useful in this test case, the method must meet two criteria: the outcome of the game must be essentially unchanged and the viewer's perception of the motion must be the same. While it is not possible to make definitive measurements of these criteria, we asses the performance gain from using different levels of details and make a preliminary assessment of the effect that the decreased accuracy has on the outcome of the sample game.

Keywords: level of detail, dynamic simulation, real-time simulation

BibTeX code

@inproceedings{Carlson.gi97,
  author = {Carlson, Deborah A. and Hodgins, Jessica K.},
  booktitle = {Graphics Interface '97},
  domains = {Virtual Reality/Level of Details:Simulation:},
  editor = {Davis, Wayne A. and Mantei, Marilyn and Klassen, R. Victor},
  title = {Simulation Levels of Detail for Real-time Animation},
  publisher = {Canadian Human-Computer Communications Society},
  pages = {1--8},
  year = 1997,
}

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		[BG+95] Blumberg B.M. et al., "Multi-Level Direction of Autonomous..." (1995)
		[Bar00] Barnes C., "Visual Programming Agents for Virtual..." (2000)
		[CH+97] Carlson D.A. et al., "Simulation Levels of Detail for Real-..." (1997)
		[GGB+03] Galland S. et al., "MaMA-s: An introduction to a..." (2003)
		[KMG+03] Koukam A. et al., "A Multiview Approach to Modeling and..." (2003)
		[Rey87] Reynolds C.W., "flocks, Herds, and Schools: A Distrib..." (1987)
		[TR+95] Tambe M. et al., "Architectures for Agents that Track O..." (1995)
		[VD+02] Vanbergue D. et al., "Approche multi-agent pour la simulation..." (2002)
		[WT+03] Wagner G. et al., "Agent-Oriented Modeling and Agent-Based..." (2003)

Virtual Reality/Level of Details

[CH+97] Carlson D.A. et al., "Simulation Levels of Detail for Real-..." (1997)