自然场景中三维植物的建模  

Simulation of Three-Dimension Plants in Natural Scenes

作　　者：王玉梅[1] 郝传刚[1] 姜晓峰[1] 

机构地区：[1]苏州大学计算机科学与技术学院,江苏苏州215006

出　　处：《苏州大学学报（工科版）》2009年第2期6-12,共7页Journal of Soochow University Engineering Science Edition (Bimonthly)

基　　金：国家自然科学基金资助项目(编号60775045)

摘　　要：三维植物建模是虚拟自然场景生成过程中的关键问题之一,而植物建模主要考虑分枝结构和叶子这两个重要因素。通过将曲线细分思想引入到上下文相关的L系统推导规则中,并改变传统的线性数组字符存储结构,提高了L系统分枝建模过程的真实感和计算效率;同时在植物叶子造型中采用轴变形方法和纹理映射技术,提高了植物叶子造型的真实感。在此基础上给出了改进的植物生长状态演化算法,并给出了实验算例。Braches and leaves are two important elements of plant, so must be mainly considered in simulation. This paper expanse traditional L-system through applying the notion of curve fraternizations into derived rules of contextsensitive L-system. Associated with the syntax of L-system, new solution to form branches based on binary tree were explored, replaced traditional store method of linear array. Additionally, this paper uses axial deformation method and texture mapping technology to model plant leaves. Finally, give fundamental algorithm of whole plant growing based new structure and experiment results.

关 键 词：三维植物建模 曲线细分 二叉树 L系统 轴变形 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]