Urban Simulation Based on Multigen and Vega

Virtual Reality is a high technology since the end of the 20th century. In this paper, some key techniques such us scene simulation and the models of virtua1 scene are introduced . On the basis of our research.Further system whit vega is finished development.and the navigation in virtual scene is also achieved.The simulation results show that the system is reliable and the method has a good character of real-time.