The Research Of Infrastructure In Distributed Real-Time Interactive Visual Simulation Based On HLA

The research of visual simulation is the main constituent of advanced simulation and the research of virtual reality technology. The essence of research correlating visual simulation is to use similarity principal of geometry and feeling, structure the artificial system that enable human to have personal feeling. Visual simulation uses technology of computer graphics, according to the simulation goal, to structure 3D models of simulated objects or reproduce the real environment to achieve the lifelike visual effect.This paper has analyzed the present situation and the prospects for development of visual simulation research from domestic to foreign, and taking this as the foundation, designs prototype system of visual simulation, carries on test which has no destructiveness, is not limited in the natural conditions, is inexpensive, and has repeatability. This paper does deep research to the knowledge of visual simulation, discusses the methods of distributed real-time interactive visual simulation, analyzes the idea, rules and the interface specifications of High Level Architecture (HLA), designs and realizes the prototype of infrastructure of distributed real-time interactive visual simulation. Under the distributed network environment, It studies emphatically that how various simulation entities produce the clear lifelike 3D scene, realizes highly effective and fast communication, designs stably and healthy distributional infrastructure.In order to realizing the research content above, this paper researches deeply platforms and correlative important technologies of visual simulation, the design methods and the interface specifications of HLA and so on, and research pointedly in the special technologies of visual simulation. The content of research includes the 3D terrain simulation, particle system modeling technology used in irregular object modeling, human's modeling and the skeleton movement, the design of sky-box and plane tree and so on. Regarding communication under the distributed network environment, it uses network programming with DirectPlay, combining the designing thought of peer-to-peer network.Chapter 1 of this paper outlines the development and the present situation of distributed visual simulation, and is clear about the main research content;Chapter 2 summarizes and analyzes develop platforms, the correlative technologies and the methods of visual simulation;Chapter 3 introduces the thoughts of High Level Architecture (HLA) used in distributed simulation system;Chapter 4 shows design and realization of infrastructure in distributed interactive visual simulation;Chapter 5 shows the demonstration example of system;Chapter 6 is the summary and forecast of this paper.