单棵植物燃烧场景的可视化模拟
|
摘要
针对当前模拟单棵植物燃烧过程的研究比较薄弱的状况,提出一种基于物理的单棵植物燃烧过程的可视化建模方法。利用参数化的L系统和粒子系统分别对植物和火焰进行建模,结合包围球原理建立火焰周围的距离温度场,通过碰撞检测算法判断周围树枝是否满足燃烧条件、相邻火焰是否满足合并条件;对枝干进行受力分析,以模拟树枝因火焰作用导致的弯曲形变。提出一种基于纹理贴图的树枝颜色变化算法。实验结果表明,通过控制植物建模的参数、火焰燃烧初始点和初始火焰大小,基本可以获得较为逼真的植物燃烧仿真效果。
At present, the research of the interactive process between plants and the flame mainly focuses on the visual simulation of forest fire scenario, but it is lack of the study on description of the interaction of individual plants and flame in detail. Aiming at this issue, this paper proposed a visual solution to model the process of a single plant burning. We established a plant model based on the branch node relationship and used particle system to model the flame. We set up a distance temperature field around a flame by using bounding sphere, and used a collision detection algorithm to judge whether the branches around the flame met the combustion conditions, the flames next to the current flame met the conditions of the flame merger. The stress of branches bending was analyzed, and an algorithm based on dynamics to simulate the branches bending deformation caused by flames action was proposed. To describe the process of color changing of branches, we proposed an algorithm based on texture mapping. Through adjusting the parameters of the plant, the initial burning point and the initial size of a flame, the dynamic burning scene of a single plant can be vividly simulated by using the methods proposed in this article.
At present, the research of the interactive process between plants and the flame mainly focuses on the visual simulation of forest fire scenario, but it is lack of the study on description of the interaction of individual plants and flame in detail. Aiming at this issue, this paper proposed a visual solution to model the process of a single plant burning. We established a plant model based on the branch node relationship and used particle system to model the flame. We set up a distance temperature field around a flame by using bounding sphere, and used a collision detection algorithm to judge whether the branches around the flame met the combustion conditions, the flames next to the current flame met the conditions of the flame merger. The stress of branches bending was analyzed, and an algorithm based on dynamics to simulate the branches bending deformation caused by flames action was proposed. To describe the process of color changing of branches, we proposed an algorithm based on texture mapping. Through adjusting the parameters of the plant, the initial burning point and the initial size of a flame, the dynamic burning scene of a single plant can be vividly simulated by using the methods proposed in this article.
引文
[1]Peng Qunsheng,Wang Changbo,Liu Shiguang.The realistic simulation of natural landscape[M].Hangzhou:Zhejiang University press,2013.
[2]Beyer,Octave Etard,Paul-Henry Cournède,et al.Modeling spatial competition for light in plant populations with the porous medium equation[J].Journal of Mathematical Biology(S0303-6812),2015,70(3):533-547.
[3]Hu Shaojun,Norishige Chiba,He Dongjian.Realistic animation of interactive trees[J].The Visual Computer(S0178-2789),2012,28(6/7/8):859-868.
[4]Li Zhan-li,Norishige Chiba.Research on Real-time Animation of Trees Swaying in Wind[J].Journal of System Simulation(S1004-731X),2008,20(8):2085-2091.
[5]丁维龙,金胡俊.植物与雨滴实时交互的可视化模拟[J].小型微型计算机系统,2013,34(4):877-880.Ding Weilong,Jin Hujun.Visual Simulation of Plant Interacting with Raindrops[J].Journal of Chinese Computer Systems,2013,34(4):877-880.
[6]钟占荣,周建军,邹样辉,等.山地林火蔓延模型的研究[J].火灾科学,2001,10(2):83-87.Zhong Zhanrong,Zhou Jianjun,Zou Yanghui,et al.Study on the Model of Wild-land Fire Spread[J].Fire Safety Science,2001,10(2):83-87.
[7]Zhao Y,Wei X,Fan Z,et al.Voxels on Fire[C].Proceedings of IEEE Visualization,2003:271-278.
[8]Losasso F,Irving G,Guendelman E,et al.Melting and Burning Solids into Liquids and Gases[J].IEEETransactions on Visualization&Computer Graphics(S1077-2626),2006,12(3):343-352.
[9]Williams B J,Song B,Hom J,et al.Wildfire visualization using GIS and forest inventory data[C].Proceedings of the 6th Southern Forestry and Natural Resources GISConference,2008:37-47.
[10]朱鉴,鲍凯,常元章,等.实时模拟固体燃烧现象[J].计算机辅助设计与图形学学报,2011,23(1):11-20.Zhu Jian,Bao Kai,Chang Yuanzhang,et al.Simulation of Solid Burning Phenomenon in Real Time[J].Journal of Computer-Aides Design&Computer Graphics,2011,23(1):11-20.
[11]Francois Pimont,Kean-Luc Dupuy,Rodman R Linn,et al.Impacts of tree canopy structure on wind flows and fire propagation simulated with FIRETEC[J].Annals of Forest Science(S1286-4560),2011,68(3):523-530.
[12]Prusinkiewicz P,Lindenmayer A.The Algorithmic Beauty of Plants[M].Springer-Verlag New York,1990.
[13]饶久平.木材燃烧过程中水分移动的研究[D].福州:福建农林大学,2002.Rao Jiuping.Research of Water Movement During Combustion Process of Wood[D].Fuzhou:University of Fujian Agriculture And Forestry,2002.
[14]王式明,赵延军,汪风林.光学分层热成像法重建火焰三维温度场分布的研究[J].工程热物理学报,2002,23(增1):233-236.Wang Shiming,Zhao Yanjun,Wang Fenglin.Theoretical and Experimental Investigation on 3-Dimensional Temerature Reconstruction in Flame Optical Sectioning Tomography[J].Journal of Engineering Thermophysics.2002,23(Sl):233-236.
[2]Beyer,Octave Etard,Paul-Henry Cournède,et al.Modeling spatial competition for light in plant populations with the porous medium equation[J].Journal of Mathematical Biology(S0303-6812),2015,70(3):533-547.
[3]Hu Shaojun,Norishige Chiba,He Dongjian.Realistic animation of interactive trees[J].The Visual Computer(S0178-2789),2012,28(6/7/8):859-868.
[4]Li Zhan-li,Norishige Chiba.Research on Real-time Animation of Trees Swaying in Wind[J].Journal of System Simulation(S1004-731X),2008,20(8):2085-2091.
[5]丁维龙,金胡俊.植物与雨滴实时交互的可视化模拟[J].小型微型计算机系统,2013,34(4):877-880.Ding Weilong,Jin Hujun.Visual Simulation of Plant Interacting with Raindrops[J].Journal of Chinese Computer Systems,2013,34(4):877-880.
[6]钟占荣,周建军,邹样辉,等.山地林火蔓延模型的研究[J].火灾科学,2001,10(2):83-87.Zhong Zhanrong,Zhou Jianjun,Zou Yanghui,et al.Study on the Model of Wild-land Fire Spread[J].Fire Safety Science,2001,10(2):83-87.
[7]Zhao Y,Wei X,Fan Z,et al.Voxels on Fire[C].Proceedings of IEEE Visualization,2003:271-278.
[8]Losasso F,Irving G,Guendelman E,et al.Melting and Burning Solids into Liquids and Gases[J].IEEETransactions on Visualization&Computer Graphics(S1077-2626),2006,12(3):343-352.
[9]Williams B J,Song B,Hom J,et al.Wildfire visualization using GIS and forest inventory data[C].Proceedings of the 6th Southern Forestry and Natural Resources GISConference,2008:37-47.
[10]朱鉴,鲍凯,常元章,等.实时模拟固体燃烧现象[J].计算机辅助设计与图形学学报,2011,23(1):11-20.Zhu Jian,Bao Kai,Chang Yuanzhang,et al.Simulation of Solid Burning Phenomenon in Real Time[J].Journal of Computer-Aides Design&Computer Graphics,2011,23(1):11-20.
[11]Francois Pimont,Kean-Luc Dupuy,Rodman R Linn,et al.Impacts of tree canopy structure on wind flows and fire propagation simulated with FIRETEC[J].Annals of Forest Science(S1286-4560),2011,68(3):523-530.
[12]Prusinkiewicz P,Lindenmayer A.The Algorithmic Beauty of Plants[M].Springer-Verlag New York,1990.
[13]饶久平.木材燃烧过程中水分移动的研究[D].福州:福建农林大学,2002.Rao Jiuping.Research of Water Movement During Combustion Process of Wood[D].Fuzhou:University of Fujian Agriculture And Forestry,2002.
[14]王式明,赵延军,汪风林.光学分层热成像法重建火焰三维温度场分布的研究[J].工程热物理学报,2002,23(增1):233-236.Wang Shiming,Zhao Yanjun,Wang Fenglin.Theoretical and Experimental Investigation on 3-Dimensional Temerature Reconstruction in Flame Optical Sectioning Tomography[J].Journal of Engineering Thermophysics.2002,23(Sl):233-236.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |