Overview
	The overall goal of the Walkthrough Project is to create interactive computer graphics systems that enable a viewer to experience an architectural model by simulating a walk through of the model. Through the years the Walkthrough project has developed many different systems; with each it has been our goal to: a) drive existing dynamic graphics engines to the utmost, b) push forward the development of methods for tracking position and orientation, c) have users evaluate our systems frequently so that we can identify aspects of a system which most impair the illusion of real presence, and d) learn more about the behavior of people in simulations. Our long-term goal is to develop a personal, portable visualization system that will allow users to walk through and interact with models of meaningful complexity while receiving realistic visual, proprioceptive, and auditory feedback at interactive rates (>25 updates per second).