| It is one of the hotest topics for using simulates real environments for science experiments based on computer simulation technology. It has advantages of economy, reliability, practicality, safety, feasibility, reusability and so on. Automobilism simulator is one application of computer simulation technology, which is used in the automobile product development, as an important tool used in the research of the "human-vehicle-environment" traffic characteristic and driving training. This simulator not only be used in the pointed training, but also by the machine we can get a real-time and vivid training process and result. The virtual reality technology is applied in the automobilism simulator training system, which is truly applies computer technology in the scene changing and movement simulation during vehicles travel process, and so on. It make driver immerse to the virtual driving environment. In order to improving the training effects, the degree of realism of virtual driving environment is always one of hot domain in research. Weather effect scene simulation of driving simulator is a highway to improve the degree of realism of driving environment. Driving simulator includes real weather as rain, snow, fog and wind, which make driver feel like driving really car. The weather effect scene simulation of driving simulator training system was selected as my research in the dissertation.The development of automobilism simulators and weather effect scene simulation at home and aboard is introduced in the dissertation. The significance of weather effect scene simulation of driving simulators is expatiated. Creator, 3D-modeling software and Vega, real-time simulation software are used as the developing tool of driving simulator. The functions of weather effect module of Vega and conception of particles system are analyzed. Theory and method of simulating base on particles system is analyzed and used to simulate natural phenomena such as fog, rain, snow and wind. And this method is put into use in the automobilism simulator scene system now.The above-mentioned research has got following productions:(1) Weather effect such as rain and snow base on particles system is simulated. (2) Tree and wind modules are created, and the effect of tree swaying in wind is realized base on LOM and OpenGL.(3) A simple roaming system is developed to realize simulate of weather effects such as rain, snow and wind bade on developing tool of Vega.(4) The performance of weather special effects is tested base on driving simulator. |
