Magnets in motion
Magnets in motion
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运动中的磁铁
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
W. Straßer
中科院分区：
文献类型：
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作者：
B. Thomaszewski;A. Gumann;S. Pabst;W. Straßer
我们引入磁相互作用的刚体模拟。我们的方法是基于等效偶极子方法，因此，它是从地面上离散。我们的方法是对称的，因为我们场和力的计算都基于偶极相互作用。用磁性丰富刚体模拟可以在计算机动画和特效中提供许多新的有趣的可能性。我们的方法还允许精确计算任意形状物体的磁场，这对于教学来说特别有趣，因为它允许用户直观地发现磁性的特性，否则很难掌握。我们证明了我们的方法在各种问题上，我们的结果反映了直观的，以及令人惊讶的效果。我们的方法是快速的，可以与任何刚体解算器耦合，以交互速率模拟数十个磁性物体。
We introduce magnetic interaction for rigid body simulation. Our approach is based on an equivalent dipole method and as such it is discrete from the ground up. Our approach is symmetric as we base both field and force computations on dipole interactions. Enriching rigid body simulation with magnetism allows for many new and interesting possibilities in computer animation and special effects. Our method also allows the accurate computation of magnetic fields for arbitrarily shaped objects, which is especially interesting for pedagogy as it allows the user to visually discover properties of magnetism which would otherwise be difficult to grasp. We demonstrate our method on a variety of problems and our results reflect intuitive as well as surprising effects. Our method is fast and can be coupled with any rigid body solver to simulate dozens of magnetic objects at interactive rates.