东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (6): 798-801.DOI: -

• 论著 • 上一篇    下一篇

超大地形分块建模算法的研究

喻春阳;赵海;王宏;   

  1. 东北大学信息科学与工程学院;东北大学机械工程与自动化学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(61071057)

Study on block modeling algorithm of extra large terrain

Yu, Chun-Yang (1); Zhao, Hai (1); Wang, Hong (2)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110819, China; (2) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Yu, C.-Y.
  • About author:-
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摘要： 研究了虚拟现实领域中超大规模地形快速、实时渲染的问题,提出一种新的地形建模方法.该方法将现实中所要表现的整块超大规模的地形分割成若干块小的地形分片,由这些小地形分片按照一定规则进行拼接,从而还原出原有的超大地形.在实际进行虚拟漫游时,只需要根据用户摄像机所在的具体位置,动态地载入进入用户视野范围的小地形分片的数据,同时动态地卸载离开用户视野范围的小地形分片的数据.该方法有效地解决了超大地形的内存占用瓶颈问题,提高了渲染效率.

关键词: 虚拟现实, 地形建模, 分块, 拼接, 动态加载

Abstract: Fast real-time rendering problems of extra large terrain in VR are studied. A new method of terrain modeling is proposed. This method divides the whole extra large terrain into many smaller tiles, and splices the original terrain according to certain rules with these tiles. The VR program only needs dynamic loading the tiles data which can be seen by client and unloading those which cannot be seen when roaming. This method resolves the memory problem effectively and improves rendering efficiency.

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