A Methodology for Description of Geometrical Deformations
Carole Blanc, Pascal Guitton, Christophe Schlick · 1994
A methodology is presented that enables to express any deformation technique in a unique framework. The driving idea of this paper is that every deformation can be reformulated as combination of three kinds of normalized operators, transformation, modulation and perturbation. Moreover, using some pleasant properties of the methodology, some innovative ways to use, combine and enhance classical techniques are provided. 1 Introduction A challenging goal in computer graphics is to provide powerful techniques for modeling the shape of an object. In order to create softwares that can be used by designers and stylists, a natural idea is to mimic tools they are familiar with. Therefore, on a lot of modeling systems, the creation of an object starts from a rough shape which is then interactively sculpted or moulded. Techniques based on that concept are usually refered as deformation techniques and have represented a main research topic in computer graphics during the last decade. Deformati...