基于迭代函数系统的书法干笔飞白仿真

干笔飞白是书法中的由于快速运笔及水分不足所形成的特殊效果,由于其随机性和复杂性采用传统的毛笔模型对之进行模拟仿真非常困难.提出了一个新颖的基于迭代函数系统的干笔飞白效果仿真模型,能够较好地再现干笔中的随机性留白效果.模型采用迭代函数系统作为建模工具,根据运笔的速度和压力,采用随机迭代算法生成笔迹点集,通过绘制点集来模拟干笔飞白效果.该模型与以往的确定性的物理模型不同,采用随机算法再现了干笔留白效果,适合于数字艺术创作.

The Dry Brush Model of Chinese Calligraphy Based on Iterated Function System

Half-dry stroke is a kind of special effect of Chinese calligraphy during rapid moving dry brush.It is difficult to simulate because of the complex and random character.Based on the iteration function system,a novel dry brush model for calligraphy was proposed to simulate the random white effect in dry brush.This model constructed iterated function system based on user’s brush speed and contrail,and rendered the attractor by chaos game algorithm as final dry brush stroke.Different from previous physics-based model,this model rendered half-dry stroke well for its random nature.