P~3DMA: A Physical 3D Deformable Modelling and Animation System

摘要

Animation and Realistic Simulation of a 3D object's elastic deformation is actually an important and challenging feature in applications where three-dimensional object interaction and behaviour is considered or explored. Also, in interactive environments we need a rapid computation of deformations. In this paper we present a prototype of a system for the animation and simulation of elastic objects in an interactive system and under real-time conditions. The approach makes use of the finite elements method (F.E.M) and Elasticity Theory. The simulation is interactively visualized in an Open Inventor environment. Using picking node selection the user can interactively apply forces to objects causing their deformation. The deformations computed with our approach have a physical interpretation based on the mathematical model defined. Furthermore, our algorithms perform with either 2D or 3D problems. Finally, a set of results are presented which demonstrate performance of the proposed system. All programs are written in C++ using POO, VRML and Open Invertor tools.