中文摘要：

将4点细分格式推广到三维表面,提出一种基于四边形栅格4点细分格式的随机移位地形生成方法.实验结果表明提出的算法可以方便生成具有真实感、基本可控性的山脉地形,较好地解决了传统随机中点移位方法对生成地形的形状无法预测和控制、裂缝和不真实的问题.

英文摘要：

In this paper, 4-point subdivision scheme is extended to aD surface, and amethod of random subd grid 4-point subdivision ivision displacement terrain generation based on quadrilateral scheme is proposed. The experimental results indicate that the algorithm is capable of creating the terrain of reality and fundamental controllability, which solves the unpredictable, unmanageable, crannied and untrue problems in terrain generation based on traditional random mid-point displacement method （RMD）