| With the popularity of digital campus construction,as an important part of th e campus information-virtual campus has begun to build,the original text and photo mode has been abandoned,using the virtual reality technology(VRML),3 d virtual campus panorama technology and computer network technology construction,makes every effort to realize the reality of the virtual campus roaming,users no matter from which Angle,this paper can be solid understanding of campus environment,a taste of the campus culture amorous feelings,for the school development and publicity play an important role,but also for the planning and management of the campus provides the most intuitive form,for the digital construction of university provides an important platform.In this paper,Industrial University Weiyang campus for the virtual environment of the virtual reality roaming technology based on geometry modeling.The ultimate goal of this design is to achieve a realistic,three-dimensional,can give people visual,auditory,tactile feeling of the simulation of the campus scene,as well as roaming on the basis of this scene.This system by using OpenGL programming,3D Max modeling and SQL database technology,and establish connection processing buildings attribute database.Introduces the background and the current situation of virtual campus.In the second part,it introduces the OpenGL and virtual reality technology,the development tools of the system and the running environment of the system.The third part by using LOD algorithm,image modeling,analysis and put forward the establishment and optimization of virtual campus scene model,a scheme in which the ground model,sky model,building model,tree model Through the whole mosaic,finally completed the construction of virtual campus.The fourth part of the campus has been built on the basis of the model,in order to improve the fidelity of the virtual campus,focuses on the three-dimensional interactive function of virtual campus roaming system,including interacti ve roaming function,auto navigation,collision detection technology,and gives the specific process and algorithm.In the fifth part,the system is tested and analyzed.This system can provide users with a friendly,realistic vitual environment,so that people feel immersive.The research and implementation of this system is helpful to the campus planning and management,as well as the three-dimensional modeling,scene roaming,interactive way to test the role.After the design and implementation of the virtual campus scene,the user can use the mouse,keyboard and other external devices to realize the collision detection in the virtual campus scene.It has laid a certain foundation for the subsequent enrollment and development of the school. |
