Virtual Scene Construction And Control Technology

Virtual reality has been widely used in the fields such as distance learning, virtual shopping, electric power system, flying simulation, digital earth, etc. These application need only realism complex Virtual Environment(VE), but require the user can interact with the virtual scene at interaction frame rate.This text makes the survey to the VE modeling technology on the basis of consulting relevant documents, and probes into several virtual control technology, such as the modeling method tactics select of VE and virtual target, the best choose of the model simplification, the mutual control of VE and the control of the rocket gun car's moving speed. The paper Gives detailed analysis for virtual target integration technology in virtual space, the method of VE model simplification and the three-dimensional animation question that the posture changes of the rocket gun garage which is variable motion in VE of naturally undulating features of terrain. At last, the article discusses the picture's stagnant sense and fuzzy produced by the picture moving, and summarizes the quality evaluation criterion after the moving picture resumes.