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From:
Eitan Grinspun, Anil N. Hirani, Mathieu Desbrun and Peter Schröder (Caltech), “Discrete shells”, Eurographics/SIGGRAPH Symposium on Computer Animtion, edited by D. Breen and M. Lin, 2003
ABSTRACT: In this paper we introduce a discrete shell model describing the behavior of thin flexible structures, such as hats, leaves, and aluminum cans, which are characterized by a curved undeformed configuration. Previously such models required complex continuum mechanics formulations and correspondingly complex algorithms. We show that a simple shell model can be derived geometrically for triangle meshes and implemented quickly by modifying a standard cloth simulator. Our technique convincingly simulates a variety of curved objects with materials ranging from paper to metal, as we demonstrate with several examples including a comparison of a real and simulated falling hat.
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