Research And Implementation Of Visual Reality 3D Modeling Technology Based On MultiGen

In recent years, Virtual Reality (VR) technology has been paid extensive attention in computer field. Virtual reality technology is designing a lifelike virtual environment based on the computer technology, which can access interaction between the user and the environment by use of the essential device. It is an essential condition to design a lifelike model for user feeling the lifelike virtual environment. 3D modeling technology is the foundation of the VR system and the key step and technology of the application. it is an important part in virtual reality system when developing a virtual reality system. The author developed the virtual reality system of the digital launch site in MultiGen Creator and Vega environment, which realized the digitalization of launch site, real-time simulation of Satellite Launch and assistant of Satellite launch mission. The paper carried out study at aspect of the complicated modeling, the visual scence designing, the real-time optimizing and the system establishing to realing some important conceptions and methods of VR modeling. On the basis of the theory study of VR modeling and characteristic of system the paper choose geometry-based modeling and rendering scheme to create the digital space launch site with the outstanding 3D modeling and presented software of MultiGen and Vega in the field of visual scene simulation.The paper puts up the modeling process and implement scheme of the complicated 3D scence,system integration and attemper manage. For solving the contradiction between real-time and reality, the paper researched the key modeling technology,and then the paper proposed the effective approaches for real-time improvement based on MultiGen from the aspect of structure optimizing and modeling optimizing. The last part firstly discussed the Vega software and the rending elements, and then presented the actualizing scheme of the digital space launch site system with the high scene complexity, real-time and interaction. The system can display scence, walk through, drive the motion model and display the special effect, and so on. The specialization of the digital space launch site and visual flight simulation system makes the thesis possess the representativeness of Virtual Reality modeling.Just so the proposed theory and methods in the paper has a certain extent reference worth for 3D modeling technology, real-time visual scene simulation and virtual reality system.