Pressure Model of Soft Body Simulation

Maciej Matyka
University of Wroclaw, Poland

Mark Ollila
Linköping University, Sweden

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Ingår i: The Annual SIGRAD Conference. Special Theme - Real-Time Simulations. Conference Proceedings from SIGRAD2003

Linköping Electronic Conference Proceedings 10:7, s. 29-33

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Publicerad: 2003-11-20


ISSN: 1650-3686 (tryckt), 1650-3740 (online)


Motivated by existing models used for soft body simulation which are rather complex to implement; we present a novel technique which is based on simple laws of physics and gives high quality results in real-time. We base the implementation on simple thermodynamics laws and use the Clausius-Clapeyron state equation for pressure calculation. In addition; this provides us with a pressure force that is accumulated into a force accumulator of a 3D mesh object by using an existing spring-mass engine. Finally after integration of Newtons second law we obtain the behavior of a soft body with fixed or non-fixed air pressure inside of it.

CR Categories: I.6.8 [Simulation and Modeling]: Types of Simulation—Animation; I.3.5 [Computer Graphics]: Computational Geometry and Object Modeling—Physically based modeling I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism—Animation.


Physically based modeling; animation


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