| 两步纹理映射的改进算法 |
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| 引用本文： | 江巨浪,张佑生,薛峰,胡敏. 两步纹理映射的改进算法[J]. 系统仿真学报, 2006, 18(5): 1157-1160,1194 |
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| 作者姓名： | 江巨浪 张佑生 薛峰 胡敏 |
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| 作者单位： | 1. 合肥工业大学计算机与信息学院,安徽,合肥,230009;安庆师范学院物理与电气工程学院,安徽,安庆,246011
2. 合肥工业大学计算机与信息学院,安徽,合肥,230009 |
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| 基金项目： | 中国科学院资助项目;安徽省自然科学基金;安徽省教育厅自然科学基金 |
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| 摘 要： | 两步纹理映射方法将映射过程分解为S映射与O映射两步进行。由于传统的S映射算法难以使纹理在中介面上保持连续，真实感效果不能令人满意。将中介面划分为对称的两部分，同时将纹理图案分割为两块，采用面积等出约束的对称映射算法将两块纹理映射到中介面两部分；运用加权插值技术对纹理接缝区域进行平滑处理，实现纹理的无缝拼接，进一步通过O映射，所生成的纹理能够在物体的所有表面都保持连续，具有较小的变形。
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| 关 键 词： | 纹理映射 两步纹理映射 S映射 纹理连续 纹理变形 |
| 文章编号： | 1004-731X（2006）05-1157-04 |
| 收稿时间： | 2005-03-01 |
| 修稿时间： | 2005-03-012005-06-30 |
Improved Algorithm of Two-Step Texture Mapping |
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| JIANG Ju-lang,ZHANG You-sheng,XUE Feng,HU Min. Improved Algorithm of Two-Step Texture Mapping[J]. Journal of System Simulation, 2006, 18(5): 1157-1160,1194 |
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| Authors: | JIANG Ju-lang ZHANG You-sheng XUE Feng HU Min |
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| Affiliation: | 1 .School of Computer Science and Information, Hefei University of Technology, Hefei 230009, China; 2.School of Physics and Electrical Engineering, Anqing Teachers College, Anqing 246011, China |
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| Abstract: | The process of two-step texture mapping is composed of S mapping and O mapping, As the conventional S mapping algorithm inevitably produces discontinuous textures on the media surface, the realistic effect is badly damaged. The media surface was divided into two symmetrical parts, and the texture plane was also separated into two parts which were symmetrically mapped onto the two parts of the media surface using the method of preserving equal ratio of areas. The area nearby the joint was smoothed using the weighted interpolation algorithm so as to sew the two textures without joint lines. The texture rendered by the following 0 mapping is continuous on all the surfaces of the object and has less distortion. |
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| Keywords: | texturing mapping two-step texture mapping S mapping texture continuity texture distortion |
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