Abstract: Generic, abstract, encapsulated, expandable and maintainable techniques for modeling and animating computer graphics display objects can be used in a variety of different computer applications and platforms including, for example, video games developed for inexpensive home 3D video game platforms. An abstract simulation entity definition for use in real time computer simulation and animation encapsulates both the physical and behavioral characteristics of a display object. The simulation entity provides a unique “genetic plan” containing abstract attributes that may be shared among objects. Each simulation entity has the knowledge or know-how of common operations, and the ability to communicate with other simulation entities.