Flexible and interactive crack-like patterns presentation on 3D objects

Abstract

In this paper a novel approach is proposed to present crack-like patterns on the surface of 3D objects. Instead of simulating the physical processes or using texturing techniques, the vectorized crack-like pattern is used. Given a crack-like pattern, basic image processing operations are applied to extract the feature pattern, and the redundant vertices are removed in the simplification process. The pattern is transformed onto the surface of paraboloid bounding volume of the input 3D object and then projected to the object's surface according to a set of given projection reference points. Based on reference points generation mechanism, crack-like patterns can be effectively and flexibly presented on the 3D objects. By the proposed hardware accelerated mechanism using stencil buffer, the interactivity of pattern presentation can be achieved on the fly. © Springer-Verlag 2004.