Daldegan, AgnesThalmann, Nadia MagnenatKurihara, TsuneyaThalmann, Daniel2014-10-212014-10-2119931467-8659https://doi.org/10.1111/1467-8659.1230211There are basically four problems to solve in order to produce realistic animated synthetic actors with hair: hair modeling and creation, hair motion, collision detection and hair rendering. This paper describes a complete methodology to solve these basic four problems. We present how hair styles may be designed with our Hair Styler module. Then we survey the animation model and emphasize a method of collision processing. Finally, we explain how hair may be rendered using an extension of a standard ray-tracing program. We also show applications of our synthetic actors with various hair styles and different styles of mustaches and beards.10.1111/1467-8659.1230211211-221