| 基于DirectX的真实感地形实时渲染技术 |
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| 引用本文： | 张立朝,申家双,郑海鹰,王宏伟,张世全.基于DirectX的真实感地形实时渲染技术[J].海洋测绘,2006,26(4):42-45. |
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| 作者姓名： | 张立朝 申家双 郑海鹰 王宏伟 张世全 |
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| 作者单位： | 1. 解放军信息工程大学,测绘学院,河南,郑州,450052
2. 解放军信息工程大学,测绘学院,河南,郑州,450052;海军海洋测绘研究所,天津,300061 |
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| 摘 要： | 主要研究和探讨了基于D irectX的真实感地形实时渲染技术。文章在规则格网DEM基础之上,采用基于LOD的DEM多分辨率动态构网技术和多层纹理贴图方法,生成比较真实的地面景观,同时添加了天空、烟雾等效果,使显示效果更加真实。生成的三维地形的渲染速度达到了20~30帧,基本上满足了实时显示的要求。
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| 关 键 词： | 地理信息系统 数字高程模型 纹理 地面景观 地表细节 |
| 文章编号： | 1671-3044（2006）04-0042-04 |
| 收稿时间： | 2005-11-29 |
| 修稿时间： | 2006-03-20 |
Technique of Third-Dimension Terrain Romancing Based on DirectX |
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| ZHANG Li-chao,SHEN Jia-shuang,ZHENG Hai-ying,WANG Hong-wei,ZHANG Shi-quan.Technique of Third-Dimension Terrain Romancing Based on DirectX[J].Hydrographic Surveying and Charting,2006,26(4):42-45. |
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| Authors: | ZHANG Li-chao SHEN Jia-shuang ZHENG Hai-ying WANG Hong-wei ZHANG Shi-quan |
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| Institution: | 1. Institute of Surveying and Mapping, Information Engineering University,Zhengzhou,Henan,450052 ; 2. Naval Institute of Hydrographic Surveying and Charting,Tianjing,300061 |
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| Abstract: | This paper researches and discusses the technique of third-dimension terrain romancing basing on DirectX.Based on the digital elevation model,it takes multilayer-texture technique and creates real ground landscape.In the same time,this paper adds the effect of sky,smog and etc.This effect makes the created terrain more real.The rate of creating third-dimension terrain can reach 20~30 frames per second.This rate can satisfy basically the need of displaying quickly. |
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| Keywords: | geographic information system(GIS) digital elevation model(DEM) texture ground landscape ground surface detail |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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