According to the phenomenon that most website display products through the form of two-dimensional and can not resolve interactive issue between users and virtual scene. This paper design a virtual roaming system which uses 3ds max to perform modeling for all the scenes in the store and make dynamic interactive design for model on Virtools platform, and study two types of collision detection. In this roaming system, users can walk freely in the store and operate interested in commodities independently like entering the real world.
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