Research On Visualization Of Satellite Simulation Based On Virtual Reality System ViWo

This paper is based on the distributed virtual reality system ViWo of Computer Graphics Laboratory of Peking University.In the development process of the system,the basic architecture of the satellite simulation system is designed in combination with computer graphics and three-dimensional real-time dynamic display technology.In the basic architecture of the satellite simulation system,a fully Abstract rendering module is implemented based on a high extensibility framework.The drawing module has joined the data management mechanism and the buffering mechanism,which can adapt to many graphics algorithms,and can support a variety of network communications.On this basis,this paper analyzes and improves the algorithm of visualization of terrain and seismic belt.Considering the characteristics of satellite simulation system,the characteristics of related conventional terrain algorithms are analyzed.Through the discussion of the conventional terrain algorithm,we find the limitations of the conventional terrain algorithm in the process of system implementation.In view of the defects of the conventional terrain algorithm,an improved method of bottom-up four fork tree terrain algorithm is given,and the implementation steps of the improved bottom-up algorithm are described in detail.And at the same time to ensure the visualization of terrain,adding GPU parallel,improve the efficiency of the system.The improved bottom-up four fork tree terrain algorithm is applied to the visualization of the system terrain,and the efficiency of the terrain algorithm is compared with the conventional terrain algorithm.According to the visualization of seismic belt and the characteristics of satellite simulation system,a method that can meet the visual demand of seismic band and meet the requirement of actual system performance is explored.Through experiments,it is found that there are different degrees of defects in the visualization of seismic zones.In this paper,give full play to the shadow rendering algorithm efficient dynamic characteristics,combining the features of the system,presents an improved shadow rendering algorithm of seismic zone visualization ideas and implementation steps of the improved shadow algorithm is described in detail.Finally,we compare the efficiency of the improved shadow rendering algorithm with the conventional algorithm.