基于 OSG 的漫游系统的设计与实现

虚拟现实技术的提出，凭借真实的沉浸感、可交互性以及可构想性等这些优势，轻而易举地把现实世界通过计算机数字化中呈现出来。在城市建设、室内设计、工业设计、道路桥梁规划、旅游教学、房地产、古迹恢复、电力水利、地质灾害、虚拟校园等各个领域广泛应用虚拟现实技术，并对相应领域的发展产生了极大的帮助和推动作用。基于OSG的漫游系统正是基于此技术上的一项应用，该系统具备模型加载，点、线、面渲染，导航，漫游，雨、雪、雾特效，等功能。最终目标是希望实时呈现了一个逼真的、立体化的，能给人视觉、听觉、触觉感受的虚拟漫游系统。该漫游系统的实现有利于景区旅游资源充分开发利用，对广西师范大学建设规划具有重要的现实意义。同时，也是弘扬和传播广西师范大学校园文化的重要途径。

Design and Implementation of Roaming System Based on OSG

The proposed virtual reality technology, these advantages by virtue of the real immersive, interactive, and can be conceived such easily in the real world through the computer digitization presented.Widely used in various fields of urban construction, interior design, industrial design, roads and bridges, planning, tourism, education, real estate, monuments restoration, water power, geological disasters, virtual campus virtual reality technology, and the development of the appropriate field generated greatHelp and role. The virtual campus roaming system is based on an application of this technical paper by the research OSG key technology of 3D rendering engine theory and three-dimensional modeling application technology to form a viable technology roadmap. OSG three- dimensional rendering engine design and realization of Guangxi Normal University virtual campus roaming system, the system has loaded model, point, line, surface rendering, navigation, roaming, rain, snow, fog effects, sky box selection function. The ultimate goal is that a realistic, three-dimensional real-time rendering, to give people visual, auditory, tactile sensations of the virtual campus roaming system.