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Author Esperança, Claudio ♦ Alzamora, Guina Sotomayor ♦ Atencio, Yalmar Ponce
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Keyword Deformable bodies ♦ Physically-based animation ♦ Collision detection
Abstract We present a simplified approach for the animation of geometrically complex deformable objects represented by tetrahedral meshes. Our prototype system detects and responds to collisions of objects that are subject to elastic deformations of variable stiffness. The proposed approach combines several techniques, namely, collision detection using spatial hashing, collision response with consistent penetration depth obtained by propagation, estimated displacement vectors for the deformation region, and binary search to separate objects. The dynamics is based on shape-matching and a modal analysis scheme, using an Euler explicit-implicit integrator. Preliminary results show that collisions between objects containing several hundreds tetrahedra can be animated in real time.
Description Affiliation: Universidade Federal do Rio de Janeiro Laboratório de Computação Gráfica - LCG (Atencio, Yalmar Ponce; Alzamora, Guina Sotomayor; Esperança, Claudio)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2008-03-01
Publisher Place New York
Journal Computers in Entertainment (CIE) (CIE)
Volume Number 7
Issue Number 4
Page Count 19
Starting Page 1
Ending Page 19


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Source: ACM Digital Library