Bar-net driven skinning for character animation

This source preferred by Jian Jun Zhang and Xiaosong Yang

Authors: Zhang, J.J., Yang, X. and Zhao, Y.

http://www3.interscience.wiley.com/journal/114287899/abstract

Journal: Computer Animation and Virtual Worlds

Volume: 18

Pages: 437-446

ISSN: 1546-4261

DOI: 10.1002/cav.211

In this paper we present a physically motivated technique for the deformation of animated characters, called the bar-net driven skinning. We use a bar-network (bar-net) as a deforming mechanism. This technique can be used similarly to a conventional skinning tool, but can also make a skin surface behave in a physically plausible manner due to the inherent physical properties of the network. A bar-net is a structure commonly used in structural engineering. Its shape depends on the structural and material properties and the forces acting upon it. Computing the rest shape of an arbitrary bar-net is a time-consuming non-linear problem. In order to speed up the computation and also for such a bar-net to be used intuitively to help computer animation, we have defined a set of properties that a desirable bar-net should satisfy. This allows a bar-net shape finding problem to be solved using linear equations. We adopt a two-layer structure for the representation of a skin surface, including a coarse mesh and a fine mesh. To deform a skin surface, we couple a bar-net to its coarse mesh, which in turn deforms the fine mesh when the coupled bar-net is deformed. The fine surface mesh can be of different forms, including Nurbs, subdivision surfaces and polygons.

This data was imported from Scopus:

Authors: Zhang, J.J., Yang, X. and Zhao, Y.

Journal: Computer Animation and Virtual Worlds

Volume: 18

Issue: 4-5

Pages: 437-446

eISSN: 1546-427X

ISSN: 1546-4261

DOI: 10.1002/cav.211

In this paper we present a physically motivated technique for the deformation of animated characters, called the bar-net driven skinning. We use a bar-network (bar-net) as a deforming mechanism. This technique can be used similarly to a conventional skinning tool, but can also make a skin surface behave in a physically plausible manner due to the inherent physical properties of the network. A bar-net is a structure commonly used in structural engineering. Its shape depends on the structural and material properties and the forces acting upon it. Computing the rest shape of an arbitrary bar-net is a time-consuming non-linear problem. In order to speed up the computation and also for such a bar-net to be used intuitively to help computer animation, we have defined a set of properties that a desirable bar-net should satisfy. This allows a bar-net shape finding problem to be solved using linear equations. We adopt a two-layer structure for the representation of a skin surface, including a coarse mesh and a fine mesh. To deform a skin surface, we couple a bar-net to its coarse mesh, which in turn deforms the fine mesh when the coupled bar-net is deformed. The fine surface mesh can be of different forms, including Nurbs, subdivision surfaces and polygons. Copyright © 2007 John Wiley & Sons, Ltd.

This data was imported from Web of Science (Lite):

Authors: Zhang, J.J., Yang, X. and Zhao, Y.

Journal: COMPUTER ANIMATION AND VIRTUAL WORLDS

Volume: 18

Issue: 4-5

Pages: 437-446

eISSN: 1546-427X

ISSN: 1546-4261

DOI: 10.1002/cav.211

The data on this page was last updated at 05:24 on October 24, 2020.