计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (36): 19-22.DOI: 10.3778/j.issn.1002-8331.2010.36.005

• 博士论坛 • 上一篇    下一篇

大规模战场电磁环境并行体绘制技术研究

于荣欢，瞿 师，杨 超，吴玲达   

  1. 国防科学技术大学 信息系统与管理学院 C4ISR重点实验室，长沙 410073
  • 收稿日期:2010-04-12 修回日期:2010-11-15 出版日期:2010-12-21 发布日期:2010-12-21
  • 通讯作者: 于荣欢

Research of parallel volume rendering of large-scale battlefield electromagnetic environment

YU Rong-huan，QU Shi，YANG Chao，WU Ling-da   

  1. Key Lab of C4ISR，College of Information Systems & Management，National University of Defense Technology，Changsha 410073，China
  • Received:2010-04-12 Revised:2010-11-15 Online:2010-12-21 Published:2010-12-21
  • Contact: YU Rong-huan

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摘要： 提出了一种基于PC集群的大规模三维战场电磁环境并行绘制方法。该方法采用直接体绘制的三维体数据可视化方法；利用空间八叉树对电磁绘制区间进行空间分割，并采用先序遍历八叉树叶节点的方式进行任务分配；采用Binary-swap算法对各PC节点的生成图像逐次进行全屏幕深度合成。实验表明，该方法能够较好满足大规模战场电磁环境实时可视化的要求。

关键词: 电磁环境, 计算机集群, 并行体绘制, 空间八叉树

Abstract: A parallel rendering method of large-scale battlefield electromagnetism based on PC cluster is proposed.This method adopts ray casting direct volume rendering algorithm to render the electromagnetic environment，uses Octree to divide the rendering space and adopts preorder traversal Octree method to distribute the divided space.At last，Binary-swap algorithm is used to compose the images which are produced by PC nodes of PC cluster.Experiments show that the method can effectively satisfy the real time rendering of large-scale battlefield electromagnetic environment.

Key words: electromagnetic environment, PC cluster, parallel volume rendering, Octree

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