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DOI:
Journal of Software:2007.18(zk):1-7

保证时间一致性的风格化液体动画
景昊,周秉锋
(北京大学 计算机科学技术系,北京 100871)
Stylized Liquid Animation with Temporal Coherence
JING Hao,ZHOU Bing-Feng
()
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Received:April 30, 2007    Revised:November 23, 2007
> 中文摘要: 采用基于八叉树的交错格存储策略进行液体流动现象模拟,并生成非真实感风格化的动画.提出了将紧致差分格式应用于标准交错格存储策略中,在流体模拟计算时可以达到四阶精度.另外,还将该差分格式扩展应用到自适应的八叉树交错格存储格式中.在风格化绘制过程中,采用二维纹理映射方法生成每帧的静态图像,采用时间轴上的拉普拉斯变化保持帧间的时间一致性.该方法可以有效地改善风格化液体动画中笔画的“闪烁”现象.
Abstract:Stylized liquid animations are produced in this paper. The liquid simulator is mainly based onoctree-staggered grid. This paper uses the compact difference scheme which is often used in non-staggered grid toachieve fourth order accuracy. The compact scheme is modified suitable to adaptive octree-staggered grid. In stylized rendering procedure, a 2D texture mapping method is used to generate still images. Laplacian scheme smoothing in time axes is introduced to maintain temporal coherence in animation. This algorithm can reduce the stroke “twinkle” phenomenon among frames.
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基金项目:Supported by the National Natural Science Foundation of China under Grant No.60573149 (国家自然科学基金); the Natural Science Foundation of Beijing, China under Grant No.4072013 (北京市自然科学基金) Supported by the National Natural Science Foundation of China under Grant No.60573149 (国家自然科学基金); the Natural Science Foundation of Beijing, China under Grant No.4072013 (北京市自然科学基金)
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景 昊,周秉锋.保证时间一致性的风格化液体动画.软件学报,2007,18(zk):1-7

JING Hao,ZHOU Bing-Feng.Stylized Liquid Animation with Temporal Coherence.Journal of Software,2007,18(zk):1-7