Systems and methods are disclosed for universal body movement translation and character rendering. Motion data from a source character can be translated and used to direct movement of a target character model in a way that respects the anatomical differences between the two characters. The movement of biomechanical parts in the source character can be converted into normalized values based on defined constraints associated with the source character, and those normalized values can be used to inform the animation of movement of biomechanical parts in a target character based on defined constraints associated with the target character.