A Method of Rendering Clouds with Perlin Noise

Clouds are one of the most important parts in realistic 3D virtual environment. For many researchers, how to model and render clouds is a very interesting problem in computer graphics. This paper first introduces the concept of Perlin noise and the method of generating Perlin noise. We used Perlin noise to create 3D clouds images. Then we made use of image-based rendering techniques to render clouds in 3D virtual environment. With our method, the position and direction of clouds can be changed according to the users viewpoints when he is wandering in the virtual environment.