基于面片收缩操作LOD方法的应用研究  

Application research of LOD method based on patch shrinkage

作　　者：苏洲[1] 李传良[2] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072 [2]河海大学机电工程学院,江苏常州213022

出　　处：《计算机工程与设计》2008年第8期2008-2009,2013,共3页Computer Engineering and Design

摘　　要：LOD技术有利于降低几何模型的复杂度,提高模型实时绘制的速度,是计算机图形学的一个重要研究课题。介绍了LOD技术的基本原理和复杂物体模型常用的简化方法,构建了三角形面片的权值计算公式,提出了一种基于面片收缩操作的LOD算法,应用脚本语言进行算法编程实现,最后论述了LOD技术的应用方法。实验结果表明,简化模型在复杂性大为降低的情况下,仍能保持良好的视觉效果。LOD technology reduce the degree of complexity of geometry model and achieve the higher rendering speed, and it is a computer graphics important research topic. Firstly, the theory of LOD technology and general methods of complex model simplification is presented. Secondly, the weight＇s calculation formula of triangle patches is constructed and one kind of LOD algorithm based on patch shrinkage is proposed. Thirdly, its implementation with script language is also detailed, Finally, the application method is discussed, The experimental result illustrates that simplified model keeps good visual effect while its complexity is greatly reduced.

关 键 词：细节层次 三角形面片 模型简化 面片收缩 平均平面 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]