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A Fast and Accurate Dihedral Interpolation Loop Subdivision Scheme

机译:快速,准确的二面插补环细分方案

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In this paper, we propose a fast and accurate dihedral interpolation Loop subdivision scheme for subdivision surfaces based on triangular meshes. In order to solve the problem of surface shrinkage, we keep the limit condition unchanged, which is important. Extraordinary vertices are handled using modified Butterfly rules. Subdivision schemes are computationally costly as the number of faces grows exponentially at higher levels of subdivision. To address this problem, our approach is to use local surface information to adaptively refine the model. This is achieved simply by changing the threshold value of the dihedral angle parameter, i.e., the angle between the normals of a triangular face and its adjacent faces. We then demonstrate the effectiveness of the proposed method for various 3D graphic triangular meshes, and extensive experimental results show that it can match or exceed the expected results at lower computational cost.
机译:在本文中,我们为基于三角形网格的细分曲面提出了一种快速,准确的二面插值环细分方案。为了解决表面收缩的问题,我们保持极限条件不变,这一点很重要。使用修改后的Butterfly规则处理非凡顶点。细分方案的计算成本很高,因为在更高细分级别上,面的数量呈指数增长。为了解决这个问题,我们的方法是使用局部表面信息来自适应地完善模型。简单地通过改变二面角参数的阈值即三角形面的法线与相邻面的法线之间的角度即可实现。然后,我们证明了该方法对各种3D图形三角形网格的有效性,广泛的实验结果表明,该方法可以以较低的计算成本匹配或超过预期的结果。

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