14. A computer animation system for creating animated characters that convey emotion through their gestures, comprising: a library of stochastically defined movement gesture actions; scene description modules programmed with information to simulate a natural motion of the gestures by the animated characters; a goal determination module for computing, for each of the gestures, a weight of a set of parameters representative of a respective gesture of the gestures to determine whether the scene description modules should simulate the respective gesture; and an analyzer receiving information from the scene description modules to convey to the goal determination module whether to increase, decrease or keep constant the weight of individual gestures to enable a smooth transition from one gesture to the next and restricting a character movement.
14. A computer animation system for creating animated characters that convey emotion through their gestures, comprising: a library of stochastically defined movement gesture actions; scene description modules programmed with information to simulate a natural motion of the gestures by the animated characters; a goal determination module for computing, for each of the gestures, a weight of a set of parameters representative of a respective gesture of the gestures to determine whether the scene description modules should simulate the respective gesture; and an analyzer receiving information from the scene description modules to convey to the goal determination module whether to increase, decrease or keep constant the weight of individual gestures to enable a smooth transition from one gesture to the next and restricting a character movement. 19. A computer animation system as in claim 14 wherein each gesture creates values over time for a set of parameters.