Augmenting Hand Animation with Three-dimensional Secondary Motion

Eakta Jain, Yaser Ajmal Sheikh, Moshe Mahler, and Jessica K. Hodgins
Eurographics/ ACM SIGGRAPH Symposium on Computer Animation (2010), July, 2010.


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Abstract
Secondary motion, or the motion of objects in response to that of the primary character, is widely used to amplify the audience’s response to the character’s motion and to provide a connection to the environment. These three-dimensional(3D) effects are largely passive and tend to be time consuming to animate by hand, yet most are very effectively simulated in current animation software. In this paper, we present a technique for augmenting hand-drawn animation of human characters with 3D physical effects to create secondary motion. In particular, we create animations in which hand-drawn characters interact with cloth and clothing, dynamically simulated balls and particles, and a simple fluid simulation. The driving points or volumes for the secondary motion are tracked in two dimensions, reconstructed into three dimensions, and used to drive and collide with the simulated objects. Our technique employs user interaction that can be reasonably integrated into the traditional animation pipeline of drawing, cleanup, inbetweening, and coloring.

Keywords
Hand animation, computer animation

Notes
Associated Lab(s) / Group(s): Computer Graphics Lab

Text Reference
Eakta Jain, Yaser Ajmal Sheikh, Moshe Mahler, and Jessica K. Hodgins, "Augmenting Hand Animation with Three-dimensional Secondary Motion," Eurographics/ ACM SIGGRAPH Symposium on Computer Animation (2010), July, 2010.

BibTeX Reference
@inproceedings{Jain_2010_6612,
   author = "Eakta Jain and Yaser Ajmal Sheikh and Moshe Mahler and Jessica K Hodgins",
   editor = "M. Otaduy and Z. Popovic",
   title = "Augmenting Hand Animation with Three-dimensional Secondary Motion",
   booktitle = "Eurographics/ ACM SIGGRAPH Symposium on Computer Animation (2010)",
   publisher = "ACM",
   month = "July",
   year = "2010",
}