Virtual reality is composed of the three dimension space scene that is created by computers and can interact with human beings . it not only could build a virtual scene that is very real and tanglesome , but also the users can interact whit the virtual scene 虚拟现实技术是由计算机生成的人机交互的三维空间环境构成,它不仅能构建高度逼真的复杂虚拟环境,而且用户还可以和虚拟环境进行互动,增强系统的交互性和沉浸感。
Immersive multi - projective virtual environment is capable of providing high - quality and high - resolution stereo images to more than one user at a same time . the system is highly immersive by covering most of the user ' s field of view and by providing natural interaction methods 多投影面沉浸式虚拟环境能够同时为多位用户提供高质量高分辨率的立体影像，通过覆盖用户大部分视野范围以及自然的交互手段，系统能够带给用户一种前所未有的沉浸感。
Image based rendering ( ibr ) is a new method that has been widely used in creating a virtual reality system . it is preferred over the traditional 3d geometry modeling and rendering technology that has its limitations on rendering quality and scene complexity 传统虚拟现实技术是基于计算机图形学的理论来建模，随着虚拟现实技术的发展，对用户的沉浸感和三维图形的视觉真实感要求越来越高，在复杂真实场景的建模表达与绘制速度和真实感上，传统计算机图形学逐渐显出其局限。
In the virtual reality system , the model must have some basic properties such as mass , weight and inertia . for some special applications , flexibility , friction and collision must also be described . all these can affect realistic of the virtual environment and the users " immersion seriously , and affect the whole design impact consequently 在虚拟现实系统中，模型必须能够反映质量、重量、惯性这些基本属性，同时对某些特殊的应用而言，干涉、碰撞以及碰撞后的响应、关联物体的运动等的表现也必不可少，所有这些都会严重影响虚拟环境的真实程度，将直接影响操作者的沉浸感，最终关系到整个系统设计的效果。
Virtual machining is a very important part in systematized techniques about virtual manufacturing . it requests an immersible 3d virtual machining environment which supplies panoramic , integrated simulation and analysis for the processing of product so as to evaluate the rationality of machining process parameters and the machining quality of product 虚拟加工是虚拟制造技术体系的重要组成部分，它要求有一个具有一定沉浸感的三维可视化虚拟加工环境，并能对产品加工提供全方位的、集成的仿真分析，以对工艺参数的合理性、产品的加工质量等做出评价。
In order to solve the issues of multiple graphics interface , real - time display and realism immersion in the virtual reality system , this article especially studies on the various real - time algorithms in the geometric , physical and behavior modeling processes of the real estate scenes . taking the related researches as basis , this article puts forward an improved anti - aliasing fast algorithm , which greatly enhances the texture mapping speed and quality 为了解决以往房地产三维展示系统图形界面单一、图形实时交互性和真实沉浸感差等问题，本论文重点研究了房地产三维场景几何、物理和行为模型建立与实现过程中各种实时处理技术及算法的应用，并在此基础上提出了改进的纹理反走样处理快速算法，在改善了纹理映射图像质量的同时大大提高了纹理映射速度。
Contrasting the poor immersion in recent robot teleoperation systems , this paper constructs a multi - channel telepresence dexterous hand teleoperation system with stereoscopic vision feedback , force feedback and acoustical feedback . low level control of the rx60 robot arm based on space mouse and the hit / dlr dexterous hand manipulation based on dataglove are implemented 临场感技术是灵巧手遥操作中交互技术的核心,针对目前机器人遥操作系统中沉浸感不强等不足,本文建立了立体视觉反馈、力觉反馈和听觉反馈的多通道临场感灵巧手遥操作系统。
Efficient and exact collision detection is very important to improve reality and enhance immersion for virtual environment , and the complexity and real - time of virtual environment bring new requirement to collision detection . bounding volume hierarchy provides an effective method to resolve the intrinsic time complexity , in collision detection 精确的碰撞检测对提高虚拟环境的真实性、增强虚拟环境的沉浸感有着至关重要的作用，而虚拟环境自身的复杂性和实时性又对碰撞检测提出了更高的要求。
Audio localization technology , a new intersecting subject , touches on such research fields as psychoacoustics and physiology , artificial intelligence and high - capability computer system and so on . and it can help transfer and identify visible information , enhance the fidelity , imagination and immersion of 3d simulation environment . so it has a broad application future 音频定位技术作为一门新兴的边缘交叉学科,涉及听觉心理学、听觉生理学、人工智能和高性能计算机系统等多个研究领域,且具有广泛的应用前景,它可以帮助传递和识别可视信息,增强三维仿真环境的逼真度、想像力和沉浸感,在军事和民用方面有广泛的应用。
