Interactive Global and Local Deformations for Virtual Clay

Guillaume Dewaele (1) , Marie-Paule Cani (2)

1 MOVI - Modeling, localization, recognition and interpretation in computer vision
2 EVASION - Virtual environments for animation and image synthesis of natural objects

Making virtual modeling as easy and intuitive as realclay manipulation is still an unsolved problem. This paper takes a step in this direction: in addition to offering standard features such as addition and removal of material, it uses a new real-time plasticity model to let the user apply local and global deformations such as those made in real clay by pressing with a finger or bending a sculpture with one hands. Although not completely physically accurate, the model exhibits several important features of real clay, namely plasticity, mass conservation, and surface tension effects. These features make the model intuitive, since the user obtains the shapes he expects, as demonstrated by our results.

Mots clés: modelling; implicit surfaces; deformations

Domaines: Synthèse d'image et réalité virtuelle [cs.GR]

Guillaume Dewaele, Marie-Paule Cani. Interactive Global and Local Deformations for Virtual Clay. 11th Pacific Conference on Computer Graphics and Applications (Pacific Graphics 2003), Oct 2003, Canmore, Canada. pp.131 - 140, ⟨10.1109/PCCGA.2003.1238255⟩. ⟨inria-00537478⟩