基于GPU的实时线绘制及水墨仿真研究

摘要

To simulate Chinese-ink-painting with simple 3D mesh input, a GPU-based real-time line-drawing algorithm and ink dispersion simulation method are presented. Firstly, the novel line-drawing algorithm utilizes multiple curvatures and design of the style-texture.The algorithm not only has good performances but also enhances the control on stylization. Moreover, due to the stylization control,the algorithm can be applied to simulate ink dispersion where we utilize LB method to simulate flow realistically. According to the final rendering results, the algorithm renders clear and pleasing image in real time, as well as totally automatically.%为了由简单三维输入自动生成水墨仿真风格图像,提出了一种基于GPU的实时线绘制算法及水墨仿真算法.提出的微分几何线绘制算法结合了视点相关和视点无关两类特征线的绘制,利用了多种曲率信息和风格化纹理.由于GPU加速和风格化纹理的设计,该算法达到实时且风格化可控,方便了国画仿真,仿真计算将水墨看作二维流体,利用LB方法模拟水墨在宣纸中的边缘扩散.通过对比大量的绘制结果以及和其他方法的比较,结果表明,该方法的绘制结果更加清晰逼真,绘制实时完成且完全自动化.