Abstract: A method and system for generating a three-dimensional virtual interactive model of an object to be displayed to a viewer. The model is prepared in the form of a VIS tree built up of four types of nodes including primitive nodes indicating geometrical attributes of the object as well as at least one non-geometrical attribute, interaction nodes coding dynamic behaviors of the object, transformation nodes coding transformation behaviors of the object and operations nodes coding combinatorial operations to be performed on a combination of at least one of the primitive, interaction and transformation nodes. The VIS tree constructed in this manner has a small file size, such that a user can view and interact with the model over a network without high link bandwidth requirements.