A real-time 3D hair animation system for human-computer interaction

In view of the 3D hair animation for human computer interaction, a real-time hair animation system is proposed based on the physical model. Firstly, the spring hinge coefficients of joints are transformed from the blending stiffness by combining the large deflection deformation model and spring hinge model, and then the traditional hair strand motion model, which is only applicable to the straight hair, is extended to the complicated hair motion. Secondly, by presenting hairs with large number of particles and dividing the hair space into some sub-spaces as well, the hair-hair interaction is simulated by estimating the possibilities of particle collisions according to the density of particles in a sub-space based on some constraint conditions. Finally, after simulating of the collision between hair and body, the hair animation is synthesized. The experimental results demonstrated the system can synthesize realistic and complicated hair motion in real-time.