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Simulation of deformable objects

Everts, M. (2006) Simulation of deformable objects. Master's Thesis / Essay, Computing Science.

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Abstract

More and more of the world around us is simulated by computers. These simulations are performed at different levels. Engineers for example use complex, slow, but precise simulations for analyzing car-crashes or optimizing a ship's hull shape. But for creating realistic effects in games and animations it is more important that good-looking simulations can be created as fast as possible. For the aforementioned purpose, creating visual effects, we have worked on methods for simulating soft, deformable objects like bread, foam, etc. We started out with a new method for constraining the volume of deformable objects. This method is based on an algorithm originally used in the simulation of molecules and atoms for constraining bond lengths. However, the important part of this research is the development of a promising new method for modeling deformable objects in simulations. In this method material is represented by a collection of particles. The forces on the particles as a results of deformation of the object are calculated using theory of a branch of physics called Continuum Mechanics that studies the properties of material. Because of this it is possible to simulate a particular material with predictable material constants. This is the advantage it has over another popular particle-based method called the mass-spring model where the particles are interconnected by springs. However, finding proper spring-constants for these springs is rather hard. This new method for modeling material is implemented and we tested it on a number of different shapes. The simulated material appears to behave like one would expect and the simulations result in a number of nice images and animations. Furthermore, the forces inside the material are good. All in all, this new method has shown to have potential and work on it will continue.

Item Type: Thesis (Master's Thesis / Essay)
Degree programme: Computing Science
Thesis type: Master's Thesis / Essay
Language: English
Date Deposited: 15 Feb 2018 07:30
Last Modified: 15 Feb 2018 07:30
URI: http://fse.studenttheses.ub.rug.nl/id/eprint/8942

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