filename : Bot07b.pdf entry : inproceedings conference : Eurographics 2007 pages : 339-347 year : 2007 month : Sep title : Adaptive Space Deformations Based on Rigid Cells subtitle : author : Mario Botsch, Mark Pauly, Martin Wicke, Markus Gross booktitle : Computer Graphics Forum 26(3), Proc. Eurographics ISSN/ISBN : 0167-7055 editor : D. Cohen-Or and P. Slavik publisher : Blackwell Publishing publ.place : volume : 26 issue : 3 language : English keywords : abstract : We propose a new adaptive space deformation method for interactive shape modeling. A novel energy formulation based on elastically coupled volumetric cells yields intuitive detail preservation even under large deformations. By enforcing rigidity of the cells, we obtain an extremely robust numerical solver for the resulting non-linear optimization problem. Scalability is achieved using an adaptive spatial discretization that is decoupled from the resolution of the embedded object. Our approach is versatile and easy to implement, supports thin-shell and solid deformations of 2D and 3D objects, and is applicable to arbitrary sample-based representations, such as meshes, triangle soups, or point clouds.