Since the stochastic midpoint displacement model introduced by the authors is a locally stationary approximation to fBm,it can produce more visual acceptable and more accurate geometric texture details.

• 所介绍的内插模型是对fBm的一个局部稳态的近似，由此产生的几何纹理细节不论在视觉上还是在精度上都更接近真实地形。