Research of the optimization and utilization of computer resources based on X3D scene and SSH2 surface framework

Traditionally, the smallest unit of virtual scene is a model. In order to make use of the computer resources, the model is generally only loaded in a certain range of the current perspective. But in the virtual scene any browser can't observe all surfaces of this model in an angle of view invariable situation. Therefore it has wasted the massive computer resources similarly [1]. This project proposes a new framework model. Firstly, the minimum division unit of the virtual scene is changed into surface and loading the visible surface within the current viewpoint and preloading surface within a certain range of the current viewpoint to construct the current scene. Again taking the current viewpoint coordinates as the center, a layer of a layer of the outer surface of the visual surface is loaded on the coordinate system to form a radar coverage network. Secondly using the background management technology based on SSH2 to realize the model unified management and combing with the foreground X3D to generate the required scenes in real time, so as to achieve the goal of reducing rendering time of the virtual scene, saving computer resources and changing old patterns of environment fixed.