A New Method with Automaticity and Controllability for Terrain Generation
一种新的兼具自动性和可控性的地形生成方法

The paper presents a new method to generate terrain automatically in virtual environment. Perlin noise is introduced as the generator of feature height of terrain. By controlling the frequency and amplitude of Perlin noise,we can get diversified terrain feature height field,which is called TFT(Terrain Feature Template). Then,MPD(Middle Point Displacement) method,which is based on mathematical model of fBM,is used to treat Feature Template,which results in more terrain detail. The main advantage of the method is the combination of automaticity and controlla- bility. On one hand,diversified Terrain Feature Templates can be automatically generated with various Perlin control parameters. value,to describe the main appearance of terrain. On the other,arbitrary level detail can be produced with various Fractal iteration parameters. value. Our results show that our method is practical in virtual environment and realistic terrain can be generated on general PC platform.