期刊文献+

Vega中云的仿真方法 被引量:16

Cloud Simulation in Vega
下载PDF
导出
摘要 比较了飞行视景仿真中几种常用的云模拟方法,分析了Windows平台上Vega中仿真天空和云的局限,提出了一种在Vega中基于非物理模型的模拟方法。该方法采用粒子系统实现,粒子为带纹理的多边形,并使用分段抛物线与随机量的叠加作为粒子运动方程。云层由大量粒子系统组成,并采用与视点相关的层次技术对场景中的各个粒子系统的粒子数量进行动态管理以减少计算量。最后给出了在Vega中的实现方法。 After comparing 5 cloud simulation methods in flight visual simulation, a non-physically based method in Vega was presented. This method was based on particle system. All the Particles were rendered by textured polygons, and moved along broken parabolas. Cloud-space was made up of plentiful particle systems, and to reduce the computation, an observer-related technology was used to manage the quantity of particles dynamically.
出处 《系统仿真学报》 EI CAS CSCD 北大核心 2005年第9期2051-2053,2069,共4页 Journal of System Simulation
基金 国防预研基金资助项目(51404040203)
关键词 视景仿真 粒子系统 层次细节 Visual Simulation Particle System Cloud LOD
  • 相关文献

参考文献8

  • 1Taxen G Cloud Modeling for Computer Graphics [D]. Royal Institute of Technology. Stockholm, Sweden. 1999.
  • 2Ebert DS. Advanced Modeling Techniques for Computer Graphics [J].ACM Computing Surveys. 1996, 28(1): 153-156.
  • 3Dobashi Y, Nishita T, Yamashita H, et al. Modeling for Cloud from Satellite Images Using Metaballs [A]. Proceedings of the 4th Pacific Conference [C]. 1998. 53-60.
  • 4Dabashi Y, Kaneda K, Hamashima H, et al. A Simple, Efficient Mehtod for Realistic Animation of Clouds [A]. SIGGRAPH2000 [C].2000. 19-28.
  • 5Unbescheiden M, Andrzej T. Cloud Simulation in Virtual Environments [A]. IEEE Visualization Proceedings [C]. 1998, 98-104.
  • 6Reeves W T. Particle system - A technique for modeling a class of fuzzy objects [J]. Computer Graphics, 1983(SIGGRAPH 83),17,359-376. Also in ACM TOG,, 1983, 2: 91-108.
  • 7MultiGen Paradigm Inc. Vega 3.7 Option Guide [M]. Dallas,MultiGen Paradigm Inc, 2001.
  • 8MultiGen Paradigm Inc. Vega 3.7 Programer's Guide [M]. Dallas,MultiGen Paradigm Inc, 2001.

同被引文献87

引证文献16

二级引证文献52

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部