Augmenting Hand Animation
with Three-dimensional Secondary Motion
with Three-dimensional Secondary Motion
Best Paper Award, SCA 2010
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
People
- Eakta Jain (Carnegie Mellon University)
- Yaser Sheikh (Carnegie Mellon University)
- Moshe Mahler (Carnegie Mellon University)
- Jessica Hodgins (Carnegie Mellon University, Disney Research Pittsburgh)
Results at a glance
Publication
"Augmenting Hand Animation with Three-dimensional Secondary Motion"Eakta Jain, Yaser Sheikh, Moshe Mahler, Jessica Hodgins.
Proceedings of Symposium on Computer Animation (SCA), July 2010.
New! See the related journal paper published in ACM Transactions on Graphics in January 2012
- Paper (PDF)
- Video (MOV, 65M, with audio)
- Some results at a glance (MOV, 3M, will play in browser if you click on the link)
Acknowledgements
Thanks to Glen Keane, Tom LaBaff and Travis Blaise for providing the input animations, and to Justin Macey and Moshe Mahler for help with motion capture and video. Thanks also to Autodesk for their donation of the 3D animation and rendering package Maya, and to Disney Research for funding.Copyright notice
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