Elastic Implicit Skinning: a Robust Iso-Surface Tracking for Interactive Character Skinning

Publication: ACM SIGGRAPH ASIA, 2014

Rodolphe Vaillant1,2, Gaël Guennebaud3, Loïc Barthe1Brian Wyvill2, Marie-Paule Cani4 

1IRIT - Université de Toulouse, 2University of Victoria, 3Inria Bordeaux,
4LJK - Grenoble Universités - Inria

Comparison of Implicit Skinning with our new Elastic Implicit Skinning. From right to left: Jeff in T-pose, Jeff rigged with implicit skinning, Jeff rigged with elastic implicit skinning, female model with implicit skinning then elastic implicit skinning.

With elastic implicit skinning the skin stretches automatically (without skinning weights) and the vertices distribution is more pleasing (notice the belly button stretch). Our approach is more robust, for instance the angle's range of joints is larger than implicit skinning (notice the triangle inversion of implicit skinning at the knee joint)

Implicit Skinning: Real-Time Skin Deformation with Contact Modeling

Publication: ACM SIGGRAPH, 2013

Rodolphe Vaillant1,2, Loïc Barthe1, Gaël Guennebaud3, Marie-Paule Cani4, Damien Rhomer5, Brian Wyvill2, Olivier Gourmel1 and Mathias Paulin1

1IRIT - Université de Toulouse, 2University of Victoria, 3Inria Bordeaux,
4LJK - Grenoble Universités - Inria, 5CPE Lyon - Inria

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(e)

  (a) (b)
  (c) (d)
(a) Self-intersection of the Armadillo's knee with dual quaternions skinning. (b) Implicit Skinning produces the skin fold and contact. (c), (d) two poses of the finger with Implicit Skinning generating the contact surface and organic bugle. (e) Implicit Skinning of an animated character around 95fps.
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