基于粒子系统的动态自然景物模拟

发布时间：2018-03-02 19:26

本文选题：粒子系统　切入点：雪景　出处：《新疆大学》2009年硕士论文　论文类型：学位论文

【摘要】： 对自然景物的模拟一直是计算机图形学中最难以解决的问题之一。关于烟、云、雨、雪等自然景物的模拟,在三维动画、计算机游戏、影视及广告中有着广泛的应用。本文主要研究了粒子系统方法,同时结合面向对象的程序设计语言,提出了粒子系统的雪景模拟算法结构。通过恰当选择粒子数量和粒子模型,该算法可以生成逼真的视觉效果并满足视景系统实时性的要求。本文选择雪景作为模拟的对象。首先,介绍了降雪的定义及特征,接着分析和总结目前模拟雪景的各种算法进行了,然后,在粒子系统的基础上给出了一种实时的降雪模拟算法,该算法兼顾雪景的真实感和系统运行的实时性,可广泛应用于游戏、电影和电视节目的虚拟场景中。并以此为基础,在OpenGL平台上,针对雪景,结合其具体的结构,加以分析,得到了雪景的动态模拟。实践表明,该粒子系统模型可在复杂的三维场景中实时地模拟降雪现象,且仿真效果逼真。
[Abstract]:The simulation of natural scenery has been one of the most difficult problems in computer graphics. The simulation of smoke, cloud, rain, snow and other natural scenery has been widely used in 3D animation, computer games, film and television and advertising. In this paper, the particle system method is studied, and combining with the object-oriented programming language, the snow scene simulation algorithm structure of the particle system is proposed. The algorithm can generate realistic visual effects and meet the real-time requirements of the visual system. Firstly, the definition and characteristics of snowfall are introduced, then the various algorithms of simulating snow scene are analyzed and summarized. Based on the particle system, a real-time snowfall simulation algorithm is presented, which can be widely used in the virtual scenes of games, movies and TV programs, taking into account the reality of the snow scene and the real-time performance of the system. On this basis, the dynamic simulation of snow scene is obtained by analyzing the snow scene and its concrete structure on the OpenGL platform. The practice shows that the particle system model can simulate the snowfall phenomenon in real time in the complex 3D scene. And the simulation effect is lifelike.
【学位授予单位】：新疆大学
【学位级别】：硕士
【学位授予年份】：2009
【分类号】：TP391.9

【引证文献】