Implementation Of Scene Subsystem Of Tower Simulator And Key Techniques Research

Tower simulation system is a very real, efficient, flexible teaching environment implemented by using virtual reality techniques. It can simulate the real 3D scene of tower control region in the airport, and also provide all kinds of controlling conditions such as various climates, emergent events, different airports and seasons according to specific training requirements. Therefore tower simulation system can attain the goal of training tower controllers safely.According to the characteristics of the real-time 3D system, which are immersion, interaction, imagination, this paper mainly introduces the design and implementation of the scene subsystem of tower simulator. Scene subsystem is responsible for rending 3D scene, drawing 360 degree view of airport real-timely, completing the simulation of airport, motion object, climate environment. The task of this subsystem includes rending the 3D view around tower in the airport, such as aircrafts, vehicle, runway, radar, taxiway, way for vehicles, buildings around the airport and scene beyond the airport. In addition, it provides the functions of telescope and rotating the 3D scene. This part contains three points, which involve the whole structural design of scene subsystem and functions of all its modules, how to model the 3D scene, and rending method. Moreover we present the advanced developing tools, Vega Prime and Mutigen Creator we used in our projects.For the difficult problems occurring in our developing processes, we emphasize some researches of key techniques such as the method of sending data frames, the solution to avoid shaking of motion objects, the simulation of special scene effects...