Title
Animation of fracture by physical modeling
Abstract
The breaking of solid objects, like glass or pottery, poses a complex problem for computer animation. We present our methods of using physical simulation to drive the animation of breaking objects. Breakage is obtaned in a three-dimensional flexible model as the limit of elastic behavior. This article describes three principal features of the model: a breakage model, a collision-detection/response scheme, and a geometric modeling method. We use networks of point masses connected by springs to represent physical objects that can bend and break. We present effecient collision-detection algorithms, appropriate for simulating the collisions between the various pieces that interact in breakage. The capability of modeling real objects is provided by a technique of building up composite structures from simple lattice models. We applied these methods to animate the breaking of a teapot and other dishware activities in the animationTipsy Turvy shown at Siggraph '89. Animation techniques that rely on physical simulation to control the motion of objects are discussed, and further topics for research are presented.
Year
DOI
Venue
1991
10.1007/BF01900837
The Visual Computer
Keywords
Field
DocType
Modeling,Animation,Deformation,Collision detection,Simulation,Dynamics
Solid geometry,Collision detection,Computer graphics (images),Computer science,Computer Aided Design,Geometric modeling,Animation,Computer animation,Animation techniques,Breakage
Journal
Volume
Issue
Citations 
7
4
75
PageRank 
References 
Authors
13.58
9
5
Name
Order
Citations
PageRank
Alan Norton113935.03
Greg Turk25951618.00
Bob Bacon37513.58
John Gerth421119.77
Paula Sweeney5143101.82