Automatic Skinning using the Mixed Finite Element Method

Hongcheng Song, Dmitry Kachkovski, Shaimaa Monem, Abraham Kassauhun Negash, David I. W. Levin
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Abstract

In this work, we show that exploiting additional variables in a mixed finite element formulation of deformation leads to an efficient physics-based character skinning algorithm. Taking as input, a user-defined rig, we show how to efficiently compute deformations of the character mesh which respect artist-supplied handle positions and orientations, but without requiring complicated constraints on the physics solver, which can cause poor performance. Rather we demonstrate an efficient, user controllable skinning pipeline that can generate compelling character deformations, using a variety of physics material models.
使用混合有限元法自动剥皮
在这项工作中,我们展示了在变形的混合有限元表述中利用附加变量,可实现高效的基于物理的角色换肤算法。以用户定义的装备作为输入,我们展示了如何高效地计算角色网格的变形,这些变形尊重了艺术家提供的手柄位置和方向,但不需要对物理求解器施加复杂的约束,否则会导致性能低下。相反,我们演示了一种高效的、用户可控的蒙皮管道,它可以使用各种物理材料模型生成引人注目的角色变形。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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