| 农业场景中下雪和积雪的实时模拟 |
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| 引用本文： | 魏伟,郭新宇,赵春江,陆声链. 农业场景中下雪和积雪的实时模拟[J]. 计算机工程与设计, 2008, 29(24) |
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| 作者姓名： | 魏伟 郭新宇 赵春江 陆声链 |
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| 作者单位： | 首都师范大学信息工程学院,北京100037;国家农业信息化工程技术研究中心,北京100097;国家农业信息化工程技术研究中心,北京,100097 |
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| 基金项目： | 国家十一五科技支撑计划基金项目 |
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| 摘 要： | 下雪和积雪是农业场景中常见的自然现象.提出了一种下雪和积雪过程模拟的方法,算法采用粒子系统对雪粒子建模来模拟下雪过程,同时加入了风吹的效果.在模拟积雪时,通过在地面和屋顶构造一层三角形网格来保存雪的堆积信息,避免了保存雪粒子作为积雪实体的内存开销,同时考虑了雪飘落过程中与温室墙壁的碰撞检测.在渲染时,采用了平均法向量和混合顶点颜色的方法来获得平滑的效果.模拟结果表明,该方法能有效地再现农业场景中下雪和积雪场景,在满足实时交互漫游的前提下表现出较强的真实感.
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| 关 键 词： | 雪 积雪模型 自然场景模拟 粒子系统 OpenGL |
Real-time simulation of snow falling and accumulation in agricultural scene |
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| WEI Wei,GUO Xin-yu,ZHAO Chun-jiang,LU Sheng-lian. Real-time simulation of snow falling and accumulation in agricultural scene[J]. Computer Engineering and Design, 2008, 29(24) |
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| Authors: | WEI Wei GUO Xin-yu ZHAO Chun-jiang LU Sheng-lian |
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| Affiliation: | WEI Wei1,2,GUO Xin-yu2,ZHAO Chun-jiang2,LU Sheng-lian2(1.College of Information Engineering,Capital Normal University,Beijing 100037,China,2.National Engineering Research Center for Information Technology in Agriculture,Beijing 100097,China) |
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| Abstract: | Snow falling and accumulation are common natural phenomena in agricultural scene.A method is presented to simulate snow falling and accumulation,the algorithm simulates the snow falling process and models snowflake particles based on analyzing particle system,with the effects of wind-blown snow,in the simulation of snow accumulation,a blanket of triangulation mesh are constructed to store information about snow depth on the ground and roof,the memory cost for storing snowflake particles as snow accumulation... |
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| Keywords: | OpenGL |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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