Virtual Scene Dynamic Control In the Manner of Internal Control Mode

Analysis by synthesis, there are two kinds of methods to implement virtual scene dynamic control, whether in the manner of external control mode or in the manner of internal control mode. In order to satisfy the requirement of real-time data input and output for peripheral equipment system, it is strongly demanded to adopt scene external control mode. When just need simply change scenepsilas dynamic effect, we can employ VRMLpsilas embedded Script node. Paper mainly discussed VRMLpsilas internal event driving mode to realize mutual interaction control between user and virtual scene. Script node is in fact a shell. It embodies a group of function and method which are programmed by some script describing language. As soon as Script node receiving an event, it will execute a relevant function, and then dispatch event through routine Route mechanism. Script also can dynamically add or delete Routes, so as to modify eventpsilas topology structure of virtual scene system.