| 基于层次分布域和粒子旋转的降雪模拟 * |
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| 引用本文： | 王剑锋,陈焱. 基于层次分布域和粒子旋转的降雪模拟 *[J]. 计算机应用研究, 2010, 27(4): 1547-1549. DOI: 10.3969/j.issn.1001-3695.2010.04.097 |
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| 作者姓名： | 王剑锋 陈焱 |
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| 作者单位： | 1. 河北科技师范学院,计算机系,河北,秦皇岛,066004
2. 燕山大学,信息科学与工程学院,河北,秦皇岛,066004 |
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| 基金项目： | 国家“ 863 ”计划资助项目 |
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| 摘 要： | 传统降雪场景的模拟往往由于粒子数量的巨大而降低实时性。针对这一问题 ,在粒子系统的基础上采用梯形层次分布域来发射粒子 ,减少了不可见粒子的浪费 ;同时用伪粒子系统来体现粒子的旋转并引入了层叠纹理的方法来增加逼真度 ,在粒子的消亡条件判断上 ,采用部分判断的算法来提高实时性。实验表明 ,该方法能实时高效地绘制出较为真实的降雪现象。
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| 关 键 词： | :粒子系统 伪粒子系统 分布域 降雪 粒子旋转 |
Simulation of falling snow based on new hierarchical distribution of domain and particle's eddy |
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| WANG Jian-feng,CHEN Yan. Simulation of falling snow based on new hierarchical distribution of domain and particle's eddy[J]. Application Research of Computers, 2010, 27(4): 1547-1549. DOI: 10.3969/j.issn.1001-3695.2010.04.097 |
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| Authors: | WANG Jian-feng CHEN Yan |
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| Affiliation: | ( 1. Dept. of Computer Science, Hebei Normal University of Science & Technology, Qinhuangdao Hebei 066004, China; 2. Information Science & Engineering Institute, Yanshan University, Qinhuangdao Hebei 066004, China) |
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| Abstract: | The large numbers of particles often affect the real-time capability in the current simulation of falling snow.This algorithm is based on particle system.To reduce the numbers of particles,used the trapeziform stribution of domain to launch the particle.Then,used the false particle system to incarnate the particle's eddy and presented the concept of superimposed texture to improve the fidelity.At last,used the new algorithm to determine if the particle should be deleted.Experimental results show that the me... |
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| Keywords: | particle system false particle system distribution of domain falling snow particle's eddy |
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