NDLI: Volume contact constraints at arbitrary resolution

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Volume contact constraints at arbitrary resolution

Content Provider	ACM Digital Library
Author	Duriez, Christian Faure, François Falipou, Florent Kry, Paul G. Allard, Jérémie Courtecuisse, Hadrien
Abstract	We introduce a new method for simulating frictional contact between volumetric objects using interpenetration volume constraints. When applied to complex geometries, our formulation results in dramatically simpler systems of equations than those of traditional mesh contact models. Contact between highly detailed meshes can be simplified to a single unilateral constraint equation, or accurately processed at arbitrary geometry-independent resolution with simultaneous sticking and sliding across contact patches. We exploit fast GPU methods for computing layered depth images, which provides us with the intersection volumes and gradients necessary to formulate the contact equations as linear complementarity problems. Straightforward and popular numerical methods, such as projected Gauss-Seidel, can be used to solve the system. We demonstrate our method in a number of scenarios and present results involving both rigid and deformable objects at interactive rates.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF MP4
ISBN	9781450302104
DOI	10.1145/1833349.1778819
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2010-07-26
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Physically based animation Coulomb friction Constraints Contact forces
Content Type	Audio Text
Resource Type	Article

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