Directable Animation of Elastic Objects

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Date
2005
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
There is a crucial demand in the computer animation industry to make animations that blend animator-specified expressive motion with physics-based realism. We propose a novel framework to create directable animation of elastically deformable objects. The directable animation is created with animator-specified keyframes and the motion trajectory of the deformable object, while maintaining a plausible realism. Our framework mainly consists of two complementary approaches. The first is a method to control the time-varying geometry of an elastic object, using a loose key-framing technique. In our keyframing, we introduce an FEM-based elastic deformation algorithm that allows us to rearrange the elastic object motion, guided by the shape or pose specified at each keyframe. The second is a motion compensation technique, which allows us to rearrange the physical behavior of elastically deformable objects under a user-specified trajectory. The animation examples demonstrate that our framework provides plausibly realistic deformation animations with greater controllability and usability than existing approaches.
Description

        
@inproceedings{
:10.2312/SCA/SCA05/127-134
, booktitle = {
Symposium on Computer Animation
}, editor = {
D. Terzopoulos and V. Zordan and K. Anjyo and P. Faloutsos
}, title = {{
Directable Animation of Elastic Objects
}}, author = {
Kondo, Ryo
and
Kanai, Takashi
and
Anjyo, Ken-ichi
}, year = {
2005
}, publisher = {
The Eurographics Association
}, ISSN = {
1727-5288
}, ISBN = {
1-59593-198-8
}, DOI = {
/10.2312/SCA/SCA05/127-134
} }
Citation