“Fast animation and control of nonrigid structures” by Witkin and Welch
Conference:
Type(s):
Title:
- Fast animation and control of nonrigid structures
Session/Category Title: Animation
Presenter(s)/Author(s):
Moderator(s):
Abstract:
We describe a fast method for creating physically based animation
of non-rigid objects. Rapid simulation of non- rigid behavior is
based on global deformations. Con- straints are used to connect
non-rigid pieces to each other, forming complex models. Constraints
also provide mo- tion control, allowing model points to be moved
accurately along specified trajectories. The use of deformations
that are linear in the state of the system causes the constraint
matrices to be constant. Pre-inverting these matrices there- fore
yields an enormous benefit in performance, allowing reasonably
complex models to be manipulated at interac- tive speed.
