约束自适应Loop曲面细分

Constraint adaptive Loop subdivision surface

自适应细分已经被广泛应用于曲面细分领域以减少不需要的细分次数和细分面数。但是目前自适应细分都存在不同细分层次之间的裂缝拟合问题,造成了不同细分层次之间的曲面无法光滑连接,对此提出一种基于中分面的约束应细分方法。该方法的主要思想是通过对深度较高区域的1邻域三角形平分,根据产生裂缝的个数,将插入点与其1邻域的网格相连,从而降低高细分区域与低细分区域的深度差,达到不同细分程度光滑过度的细分效果。

Adaptive subdivision surfaces have been widely used in segments to reduce subdivision times and the number of faces.However,a problem of the cracks between the different sub-levels fitting in adaptive subdivision resulted the surfaces could not be connected smoothly.This paper proposed the adaptive subdivision method based on the facet,with the main idea of the depth through the region a higher split triangle neighborhood.According to the number of cracks,the insertion point connected with a 1-neighborhood mesh,thereby reducing depth of difference between the high regional and high low regional,the different degree of sub-segments will be transited smoothlyAbstract