摘要
采用计算机图形学技术进行虚拟地形的三维建模,难点在于对地形非规则性的几何描述.基于分形布朗运动原理,对经典的Diamond-square算法进行了改进,得到了具有多特征的虚拟地形.对算法的参数进行了分析,并用计算机进行模拟实验.通过分析各参数对虚拟地形形状特征的影响,确定了各参数的有效区间,保证了算法灵活快速地生成真实感三维地形.
The difficulty of virtual 3D terrain modeling with computer graphics technology is the terrain of non-regularity of the geometric description. Based on the FBM, the classic diamond-square is advanced, virtual terrain with multi-feature is got. The algorithm parameters is analysed, and is sim- ulated with computer. By analyzing the various parameters on the shape of the virtual terrain features, it determines the effective range of each parameter, and ensures the algorithm to generate realistic 3D terrain flexibly and fast.
出处
《沈阳理工大学学报》
CAS
2009年第4期1-5,共5页
Journal of Shenyang Ligong University
关键词
虚拟地形
三维建模
分形布朗运动
参数分析
virtual terrain
3D modeling
fractal brownian motion（FBM）
parameters analyzing
