IFS树木随风摇曳的方法研究  

RESEARCH ON MEANS OF TREES SWAYING WITH THE WIND BASED ON IFS

作　　者：赵鹏飞[1] 张志毅[1] 

机构地区：[1]西北农林科技大学信息工程学院,陕西杨凌712100

出　　处：《计算机应用与软件》2013年第8期102-105,共4页Computer Applications and Software

基　　金：教育部留学回国人员科研启动基金资助项目(K314020901)

摘　　要：为了更好地模拟自然环境中三维树木摇曳的效果,基于迭代函数系统(IFS)方法并利用高斯函数产生随机因子,对三维树木进行建模。采用1/fB噪声技术产生虚拟风场,运用力学知识对树木进行受力分析,模拟树木随风摇曳的运动状态。实验结果表明,该方法能够有效地模拟自然树木的形态,树木具有较好的逼真度,并能快速真实地模拟树木摇曳效果。To better simulate the effect of three-dimensional trees swaying in natural environment, in this paper we model the 3-D trees based on iterated function systems （IFS） and using Gaussian random function to generate random factors. The 1/f t^noise technique is employed to generate virtual wind, the mechanics knowledge is used to carry out the stress analysis on the trees and to simulate the motion state of trees swaying with the wind. Experimental result shows that the method can effectively simulate the form of natural trees, the trees have quite good fidelity, and the method can quickly and really simulate the swaying effect of trees.

关 键 词：树木 迭代函数系统 风场 噪声 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]