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蝶形细分面片的光顺

DOI: 10.11834/jig.20030398

Keywords: 计算机图形学(520.6030),细分,网格光顺,控制网格

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Abstract:

使用蝶形细分法细分一般的初始控制网格得到的细分面片光滑而不光顺,面片的视觉效果很差,而运用现有的光顺技术,又只能直接光顺细分以后的结果,其需要保存的数据不仅量大,而且会引入误差.针对这一问题,提出了一种新的光顺方法,即通过调整初始网格顶点位置来光顺细分以后的结果.在添加合适的约束后,该方法不仅可以在光顺细分面片的同时,降低细分面片和三维真实物体表面之间的逼近误差,而且由于最终输出的是初始控制网格,故需要保存的数据量小.

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