首页> 中文学位 >大规模多用户虚拟世界及其冲突检测方法的研究
【6h】

大规模多用户虚拟世界及其冲突检测方法的研究

代理获取

目录

文摘

英文文摘

ACKNOWLEDGMENTS

Chapter1 introduction

1.1The importance and applications of collision detection

1.2. Collision detection objective analysis

1.3 The organization of this dissertation

Chapter 2 Background and Related Work

2.1 Problem Classification

2.1.1 Model Representations

2.1.2 Proximity Measures

2.1.3 Simulation Environments

2.2 Collision Detection for Polygonal Models

2.2.1 Convex Polytopes

2.2.2 Selection of Bounding Volume

2.3 Collision detection for non-polygonal models

2.3.1 Constructive solid geometry models

2.3.2 Parametric surfaces

2.3.3 Implicit surface

2.4 N-Body Processing

2.4.1 Scheduling Scheme

2.4.2 Sorting-Based Sweep and Prune

2.4.3 Interval Tree for 2D Intersection Tests

2.4.4 Uniform Spatial Subdivision

Chapter 3 Collision detection in a large-scale VW systems

3.1 The basic algorithm analysis

3.1.1 Basic algorithm

3.1.2 Weaknesses of the Basic Algorithm

3.2 Application analysis

3.2.1 Large-scale population demand

3.2.2Possible collaboration

3.2.3Realtime requirements and solution

Chapter 4 Object-driven collision detection--a realtime solution

4.1 Related solution for all-pair weakness

4.2 Idea of Object driven collision

4.3 The collision detection algorithm

4.3.1 Virtual grid

4.3.2 The data structure of the objects for collision detection

4.3.3 Contact determination

4.3.4 refinement and levels of the virtual grid

4.3.5 the Pseudocode of the algorithm

4.4 Collision detection for distributed virtual world simulation

Chapter 5 Performance analysis

5.1Theoretic analysis

5.2Empirical Analysis

Chapter 6 Conclusion and future work

Reference

展开▼

摘要

真实性,实时和交互性是虚拟世界系统的三个重要的特性.为了阐明问题,该文首先给出了在各种几何模型之间的进行冲突检测必须考虑的因素和冲突检测算法.鉴于该文的研究背景(大型虚拟世界中的冲突检测),我们特别研究了几个处理N个物体之间的冲突检测算法.按此思想及近似和粗化的思想,我们给出了一个大型虚拟世界冲突检测的实时解决方案.由于该算法不对物体的形状,运动状态坐任何的假设,该算法具有一般性.实验测试表明,算法的速度相当快.当然,该算法尚还有缺陷,但我们认为该算法有较好的扩展性,可以做改进而克服其他一些算法的缺陷值得进一步的探索.

著录项

相似文献

  • 中文文献
  • 外文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号