Abstract: In this paper a new method of generating computer realistic images is described. For certain nonanalytic curved surfaces, we studied further modeling method and rendering method based on surface element. Making use of ray tracing technology with global illumination and meanwhile combining it with the new method, we obtained several realistic images and consequently got better results. By the method mentioned in this paper some problems existed in the traditional method are solved effectively.

Key words: rendering of realistic images, geometric modeling, discrete points, neighbor radius