基于Loop细分的自适应细分曲面算法  

ADAPTIVE SUBDIVISION SURFACE ALGORITHM BASED ON THE LOOP SUBDIVISION

作　　者：吴元翠[1] 

机构地区：[1]安徽农业大学理学院应用数学研究所,安徽合肥230036

出　　处：《井冈山大学学报（自然科学版）》2013年第5期41-44,共4页Journal of Jinggangshan University (Natural Science)

摘　　要：首先研究了传统的Loop细分曲面算法,通过分析发现随着细分次数的增多细分算法中三角形网格片数增长过快。针对这一问题提出一种自适应细分曲面算法。算法根据相邻两个三角形面上的法向量的夹角,判断细分网格中较为光滑和非光滑的区域。实验结果表明,算法提高了数据处理速度,并且模型简单易实现。Firstly, the traditional Loop subdivision surface algorithm is studied. The analysis show that the increase of the number of triangular mesh is growing too fast in the traditional Loop subdivision algorithm. Secondly, in order to solve this problem, an adaptive subdivision surface algorithm is given. This algorithm bases on the included angle of the two normal vector of the two adjacent triangles to judge the more smooth and nonsmooth area in subdivision grid, than subdivides the nonsmooth area only. Finally, the experimental results show that this algorithm improves the speed of subdivision processing, and the model is easy to implement.

关 键 词：细分曲面 LOOP细分 自适应细分 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]