文档介绍：HUNAN UNIVERSITY
毕业设计(论文)
设计(论文)题目: 基于OpenGL粒子系统的喷泉模拟
学生姓名冯亮
学生学号 20041610504
专业班级软件测试一班
学院名称软件学院
指导老师申煜湘
系主任(院长) 林亚平
2008 年 5 月 19 日
基于OpenGL粒子系统的喷泉模拟
摘要
随着计算机仿真技术的不断提高,人们对真实事物的模拟要求越来越高,模拟技术的重要性越来越突出,尤其在3D游戏、军事演习和仿真实验等方面。而寻求能准确地描述客观世界中各种现象与景观的数学模型,并逼真地再现这些现象与景观,是计算机图形学的一个重要研究课题。
本文从计算机图形学中粒子系统模拟自然景物的方面出发,介绍了采用粒子系统模拟真实事物的方法。实际上,很多自然景物难以用几何模型描述,如烟雾、植物、水波、火焰等,粒子系统的景物模拟则超越了几何模型的限制,能够用简单的模型描述复杂的自然景物。
本课题设计了基于OpenGL粒子系统的喷泉模型,详细讨论了模型中粒子的属性及其变化,实现了具有较强真实感的动态变化和抛物变化等喷泉特征,采用了纹理映射和视线跟踪技术进行三维喷泉渲染;同时,采用Line方式取代传统的Point方式渲染粒子实现喷泉模拟。该方式模拟喷泉比较真实,速度快,在普通的微机上可以得到令人满意的效果。
关键词:粒子系统,喷泉模拟,特效
The Fountain Simulation Based on OpenGL Particle System
Author: Feng Liang
Tutor: Sheng Yuxiang
Abstract
With puter simulation technology continues to improve, people is demanding increasingly on the simulation of real things, the importanctof Simulation is prominenting increasingly, especially in 3D games, military drills and simulations, and so on. And seeking an the accurate mathematical model description of a variety of landscape of in the objective world,and realistic reproduce these phenomena and landscape, is an important research topic of the graphics. The topic from analoging the nature of the area with the Particles system of the graphic introductions the simulation of the real things. Many nature difficult to describe the geometric models, such as smoke, plants, water waves, flame, and so on, the features of particle system simulation model goes beyond the geometric constraints, can plex nature by a simple model.
This topic designed the fountain model based on the OpenGL particle system, discussed detailly the properties of particles in the model and its changes, achieved a more realistic with the dynamic changes and changes in parabolic fountain features, used texture mapping and tracking technology for 3-D vision Fountain rendering. the same time, Line way used to replace the traditional Point way exaggerated particles to achieve fountain simulation. The simu