Geometric Skinning with Approximate Dual Quaternion Blending
Geometric Skinning with Approximate Dual Quaternion Blending
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DOI：
10.1145/1409625.1409627
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发表时间：
2008-10-01
影响因子：
6.2
通讯作者：
O'Sullivan, Carol
中科院分区：
文献类型：
--
作者：
Kavan, Ladislav;Collins, Steven;O'Sullivan, Carol
骨骼可变形模型的蒙皮广泛用于角色、生物和类似对象的实时动画。标准解决方案线性混合蒙皮具有一些需要艺术家干预的严重缺陷。因此，近年来提出了许多替代方案。它们都成功地解决了一些瑕疵，但没有一个能挑战线性混合蒙皮的简单性和效率。因此，线性混合蒙皮仍然是大多数开发者的首选。本文提出了一种基于对偶四元数线性组合的蒙皮算法。即使我们提出的方法是近似的，它也没有表现出以前方法中固有的任何伪影，并且仍然允许高效的GPU实现。将现有动画系统从线性蒙皮升级为双四元数蒙皮非常容易，并且对运行时性能的影响相对较小。
Skinning of skeletally deformable models is extensively used for real-time animation of characters, creatures and similar objects. The standard solution, linear blend skinning, has some serious drawbacks that require artist intervention. Therefore, a number of alternatives have been proposed in recent years. All of them successfully combat some of the artifacts, but none challenge the simplicity and efficiency of linear blend skinning. As a result, linear blend skinning is still the number one choice for the majority of developers. In this article, we present a novel skinning algorithm based on linear combination of dual quaternions. Even though our proposed method is approximate, it does not exhibit any of the artifacts inherent in previous methods and still permits an efficient GPU implementation. Upgrading an existing animation system from linear to dual quaternion skinning is very easy and has a relatively minor impact on runtime performance.