Animating elastic rods with sound

Animating elastic rods with sound
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用声音动画弹性杆

DOI:
10.1145/3072959.3073680
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发表时间:
2017
影响因子:
6.2
通讯作者:
Marschner, Steve
Marschner, Steve
中科院分区:
计算机科学1区
文献类型:
--
作者:
Schweickart, Eston;James, Doug L.;Marschner, Steve

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声音生成方法,如线性模态合成,可以使固体物体的各种基于物理的动画声化,解决各种结构的振动和声辐射。然而,弹性杆是一个重要的计算机动画原语,如模态合成,以前的声音合成方法,是不适合的几个原因:大位移,非线性振动,色散效应,和几何奇异性质的roads.In本文中,我们提出了基于物理的方法,同时生成动画和声音的变形杆。我们利用基尔霍夫理论来简化杆动力学的表示,并引入广义偶极子模型来计算空间变化的声辐射。在这样做的过程中,我们大大减少了所需的预先计算量(在某些情况下完全消除它),同时能够解决计算机动画中遇到的任意身体变形的声音辐射。我们提出了几个例子,包括具有挑战性的场景,涉及数千个高度耦合的摩擦接触。
Sound generation methods, such as linear modal synthesis, can sonify a wide range of physics-based animation of solid objects, resolving vibrations and sound radiation from various structures. However, elastic rods are an important computer animation primitive for which prior sound synthesis methods, such as modal synthesis, are ill-suited for several reasons: large displacements, nonlinear vibrations, dispersion effects, and the geometrically singular nature of rods.In this paper, we present physically based methods for simultaneous generation of animation and sound for deformable rods. We draw on Kirchhoff theory to simplify the representation of rod dynamics and introduce a generalized dipole model to calculate the spatially varying acoustic radiation. In doing so, we drastically decrease the amount of precomputation required (in some cases eliminating it completely), while being able to resolve sound radiation for arbitrary body deformations encountered in computer animation. We present several examples, including challenging scenes involving thousands of highly coupled frictional contacts.
预先计算的声学传递:针对几何复杂振动源的输出敏感、精确的声音生成
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期刊: ACM SIGGRAPH 2006 Papers
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DOI: --
发表时间: 1992
期刊: International Conference on Computer Graphics and Interactive Techniques
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