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A Controllable, Fast and Stable Basis for Vortex Based Smoke
Simulation
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Alexis Angelidis, Karan Singh
We introduce a method for the animation of elastic and incompressible
material. Our model is composed of two main parts: a motion equation
for the vorticity at the interface of two continua, and an
approximated Biot-Savart law to recover the velocity field. We apply
this model to the animation of muscles for character animation, which
relates our method to physically-based deformers. Our technique
requires the artist to place and size the muscles' geometry, and can
produce a quick visualization of the dynamics with no heavy
precomputation. We use an easy to implement explicit Euler solver,
fast and stable for arbitrary long time steps.
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