Abstract
Animations of characters with flexible bodies such as jellyfish, snails, and, hearts are difficult to design using traditional skeleton-based approaches. A standard approach is keyframing, but adjusting the shape of the flexible body for each key frame is tedious. In addition, the character cannot dynamically adjust its motion to respond to the environment or user input. This paper introduces a new procedural deformation framework (ProcDef) for designing and driving animations of such flexible objects. Our approach is to synthesize global motions procedurally by integrating local deformations. ProcDef provides an efficient design scheme for local deformation patterns; the user can control the orientation and magnitude of local deformations as well as the propagation of deformation signals by specifying line charts and volumetric fields. We also present a fast and robust deformation algorithm based on shape-matching dynamics and show some example animations to illustrate the feasibility of our framework.
| Original language | English |
|---|---|
| Pages (from-to) | 1821-1828 |
| Number of pages | 8 |
| Journal | Computer Graphics Forum |
| Volume | 28 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2009 Oct |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Computer Networks and Communications
Cite this
ProcDef : Local-to-global deformation for skeleton-free character animation. / Ijiri, Takashi; Takayama, Kenshi; Yokota, Hideo; Igarashi, Takeo.
In: Computer Graphics Forum, Vol. 28, No. 7, 10.2009, p. 1821-1828.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - ProcDef
T2 - Local-to-global deformation for skeleton-free character animation
AU - Ijiri, Takashi
AU - Takayama, Kenshi
AU - Yokota, Hideo
AU - Igarashi, Takeo
PY - 2009/10
Y1 - 2009/10
N2 - Animations of characters with flexible bodies such as jellyfish, snails, and, hearts are difficult to design using traditional skeleton-based approaches. A standard approach is keyframing, but adjusting the shape of the flexible body for each key frame is tedious. In addition, the character cannot dynamically adjust its motion to respond to the environment or user input. This paper introduces a new procedural deformation framework (ProcDef) for designing and driving animations of such flexible objects. Our approach is to synthesize global motions procedurally by integrating local deformations. ProcDef provides an efficient design scheme for local deformation patterns; the user can control the orientation and magnitude of local deformations as well as the propagation of deformation signals by specifying line charts and volumetric fields. We also present a fast and robust deformation algorithm based on shape-matching dynamics and show some example animations to illustrate the feasibility of our framework.
AB - Animations of characters with flexible bodies such as jellyfish, snails, and, hearts are difficult to design using traditional skeleton-based approaches. A standard approach is keyframing, but adjusting the shape of the flexible body for each key frame is tedious. In addition, the character cannot dynamically adjust its motion to respond to the environment or user input. This paper introduces a new procedural deformation framework (ProcDef) for designing and driving animations of such flexible objects. Our approach is to synthesize global motions procedurally by integrating local deformations. ProcDef provides an efficient design scheme for local deformation patterns; the user can control the orientation and magnitude of local deformations as well as the propagation of deformation signals by specifying line charts and volumetric fields. We also present a fast and robust deformation algorithm based on shape-matching dynamics and show some example animations to illustrate the feasibility of our framework.
UR - http://www.scopus.com/inward/record.url?scp=71949090623&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=71949090623&partnerID=8YFLogxK
U2 - 10.1111/j.1467-8659.2009.01559.x
DO - 10.1111/j.1467-8659.2009.01559.x
M3 - Article
VL - 28
SP - 1821
EP - 1828
JO - Computer Graphics Forum
JF - Computer Graphics Forum
SN - 0167-7055
IS - 7
ER -