3D实用毛笔模型的物理仿真  

Physical Simulation of Practical 3D Brush Model

作　　者：孙美君[1] 孙济洲[1] 王征[1] 丁兆伟[1] 

机构地区：[1]天津大学计算机科学与技术学院,天津300072

出　　处：《天津大学学报》2008年第3期293-299,共7页Journal of Tianjin University(Science and Technology)

基　　金：国家自然科学基金资助项目(60573156)

摘　　要：从水墨画成画机理出发提出一个实用的3D毛笔模型系统,精确模拟毛笔几何形态及运动弯曲等动态交互行为.提出势能-阈值方法以灵活控制毛笔形变的弹塑性转化及扭转程度.采用快速分叉算法,随机生成真实感很强的毛笔分叉效果.结合3D毛笔模型和虚拟宣纸模型设计了水墨扩散传输算法,从而形成完善的水墨成画机制.上述方法可有效仿真艺术创作过程中毛笔的动态变化,实现单笔扩散、多笔次叠加和干笔飞白等数字水墨特效.A practical 3D brush model system was put forward from ink-water drawing principle to accurately simulate geometry states and interactive behavior of brush. A potential energy-threshold method was introduced to control the transformation from elastic deformation to plastic deformation and the turning degree of blush. Fast forking algorithm ensured the realistic branching effect of brush. A water-ink transmission algorithm was devised with the combination of 3D brush model and virtual paper model, which made a perfect water-ink painting mechanism, All methods above simulate the dynamic change of brush effectively during art creation process, and realize digital waterink effects such as single stroke diffusion, multi-stroke overlapping and half-dry.

关 键 词：3D毛笔模型 水墨传输 势能-阈值 多笔次叠加 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]