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Stylized Keyframe Animation of Fluid Simulations

NPAR 2014, Proceedings of the 12th International Symposium on Non-photorealistic Animation and Rendering, June 2014

Mark Browning, Connelly Barnes,
Samantha Ritter, Adam Finkelstein
An upward-flowing jet of ink rendered in oil pastel. An underlying simulation is used as input to guide the artwork (frame 45 is shown). Frames 50, 60 and 70 are hand-drawn keyframes, while the remaining in-betweens were generated automatically by our system.
Abstract

We present a method that combines hand-drawn artwork with fluid simulations to produce animated fluids in the visual style of the artwork. Given a fluid simulation and a set of keyframes rendered by the artist in any medium, our system produces a set of in-betweens that visually matches the style of the keyframes and roughly follows the motion from the underlying simulation. Our method leverages recent advances in patch-based regenerative morphing and image melding to produce temporally coherent sequences with visual fidelity to the target medium. Because direct application of these methods results in motion that is generally not fluid-like, we adapt them to produce motion closely matching that of the underlying simulation. The resulting animation is visually and temporally coherent, stylistically consistent with the given keyframes, and approximately matches the motion from the simulation. We demonstrate the method with animations in a variety of visual styles.
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Citation

Mark Browning, Connelly Barnes, Samantha Ritter, and Adam Finkelstein.
"Stylized Keyframe Animation of Fluid Simulations."
NPAR 2014, Proceedings of the 12th International Symposium on Non-photorealistic Animation and Rendering, June 2014.

BibTeX

@article{Browning:2014:SKA,
   author = "Mark Browning and Connelly Barnes and Samantha Ritter and Adam
      Finkelstein",
   title = "Stylized Keyframe Animation of Fluid Simulations",
   journal = "NPAR 2014, Proceedings of the 12th International Symposium on
      Non-photorealistic Animation and Rendering",
   year = "2014",
   month = jun
}