A particle system using CSG for description and visualization

Author

Gareau, A. ; Excoffier, T. ; Tosan, E.

Author_Institution

LISPI/LIGIA, Univ. Claude Bernard, Villeurbanne, France

fYear

1994

fDate

25-28 May 1994

Firstpage

175

Lastpage

183

Abstract

We present a method to describe and visualize particle-systems using constructive solid geometry (CSG). Deformable objects simulations are easy to realize with coupled-particles. Motions are the results of time-integration of physical dynamics equations. In order to describe the physical objects, we add to the classic CSG-attributes, some that are not graphical. They allow the definition of physical parameters (density, speed, ...). So the scene can be describe with only CSG-trees. When images are generated, the CSG-tree is used by a ray-tracer. We can control a large range of objects with very different behaviours. In order to integrate the two models (particles, CSG) in one system, we propose methods that allow to convert a model from one to another

Keywords

computational geometry; computer animation; data visualisation; physics computing; ray tracing; trees (mathematics); CSG; CSG-trees; animation; classic CSG-attributes; constructive solid geometry; coupled-particles; deformable objects simulations; description; particle system; particle-system visualisation; physical dynamics equations; ray-tracer; time-integration; visualization; Animation; Clouds; Deformable models; Explosions; Fires; Geometry; Kinematics; Layout; Network address translation; Visualization;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Animation '94., Proceedings of

Conference_Location

Geneva

Print_ISBN

0-8186-6240-9

Type

conf

DOI

10.1109/CA.1994.323993

Filename

323993