| 基于切片的3维树木绘制算法 |
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| 引用本文： | 马智刚,王向前,马静谨,范英贺.基于切片的3维树木绘制算法[J].测绘科学技术学报,2007,24(3):203-206. |
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| 作者姓名： | 马智刚 王向前 马静谨 范英贺 |
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| 作者单位： | 信息工程大学,测绘学院,河南,郑州,450052;68011部队,甘肃,兰州,730010;65015部队,辽宁,大连,116023 |
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| 摘 要： | 树木的3维渲染是地形仿真的重要组成部分.在基于经典广告牌3维树模型绘制基础上,应用一种切片方案模拟树的体特征,实现视觉效果更为真实的3维树模拟.在切片绘制时,算法充分利用图形硬件的可编程特性,使整个顶点变换和纹理单元都在图形硬件上装配实现,同时应用LOD原理绘制切片,提高绘制效率.最后,通过实验验证了算法的正确性和实用性.
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| 关 键 词： | 纹理单元 切片 规则纹理单元 轮廓纹理单元 |
| 文章编号： | 1673-6338（2007）03-0203-04 |
| 收稿时间： | 2006-12-05 |
| 修稿时间： | 2006-12-052007-03-25 |
A 3D Tree Rendering Method Based on Slices |
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| MA Zhi-gang,WANG Xiang-qian,MA Jing-jin,FAN Ying-he.A 3D Tree Rendering Method Based on Slices[J].Journal of Zhengzhou Institute of Surveying and Mapping,2007,24(3):203-206. |
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| Authors: | MA Zhi-gang WANG Xiang-qian MA Jing-jin FAN Ying-he |
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| Institution: | 1. Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052, China; 2. 68011 Troops, Lanzhou 730010, China; 3.65015 Troops, Dalian 116023, China |
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| Abstract: | The tree simulation is one of the important components of terrain rendering. In this paper, it proposes a new representation for the forest terrain rendering which is based on the classical billboard technique. It takes advantage of the programmable graphic hardware to calculate the data. At the same time it reduces the rendering slices num by using the level of detail theory. In the end of this paper, it gives the experiment and proves that this method is right and practical. |
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| Keywords: | texcell slicing regular texcell silhouette texcell |
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