Abstract: We present a pencil texture generation method based on the pencil filter.By the method, a simple mathematical model of pencil stroke can be created though analyzing the character of the real pencil texture.When the model existed, the pencil template can be attained easily, and the pencil texture can be conveniently generated according to users' needs.With the help of contemporary graphics hardware(GPU, or Graphics Processing Unit), we may further achieve real-time video rendering by the method.