Image space silhouette extraction using graphics hardware

Abstract

In computer graphics, silhouette extracting and rendering has an important role in a number of application. Special features such as silhouette and crease of a polygonal scene are usually displayed by identifying for the corresponding geometry especially in non-photorealistic rendering (NPR). We present an algorithm for extracting and rendering silhouette outlines and crease edges of 3D polygonal meshes in image space. This algorithm is simple and suitable for modern programmable graphics hardware implementation. It can generate NPR image synthesis in real-time. Our experimental results show it satisfies real-time interactive needs. © Springer-Verlag Berlin Heidelberg 2005.