Controllable motion synthesis in a gaseous medium

L. Shi, Y. Yu, C. Wojtan, S. Chenney, The Visual Computer 21 (2005) 474–487.

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Abstract
The generation of realistic motion satisfying user-defined requirements is one of the most important goals of computer animation. Our aim in this paper is the synthesis of realistic, controllable motion for lightweight natural objects in a gaseous medium. We formulate this problem as a large-scale spacetime optimization with user controls and fluid motion equations as constraints. We have devised novel and effective methods to make this large optimization tractable. Initial trajectories are generated with data-driven synthesis based on stylistic motion planning. Smoothed particle hydrodynamics (SPH) is used during optimization to produce fluid simulations at a reasonable computational cost, while interesting vortex-based fluid motion is generated by recording the presence of vortices in the initial trajectories and maintaining them through optimization. Object rotations are refined as a postprocess to enhance the visual quality of the results. We demonstrate our techniques on a number of animations involving single or multiple objects.
Publishing Year
Date Published
2005-08-01
Journal Title
The Visual Computer
Volume
21
Issue
7
Page
474 - 487
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Shi L, Yu Y, Wojtan C, Chenney S. Controllable motion synthesis in a gaseous medium. The Visual Computer. 2005;21(7):474-487. doi:10.1007/s00371-005-0296-0
Shi, L., Yu, Y., Wojtan, C., & Chenney, S. (2005). Controllable motion synthesis in a gaseous medium. The Visual Computer, 21(7), 474–487. https://doi.org/10.1007/s00371-005-0296-0
Shi, Lin, Yizhou Yu, Chris Wojtan, and Stephen Chenney. “Controllable Motion Synthesis in a Gaseous Medium.” The Visual Computer 21, no. 7 (2005): 474–87. https://doi.org/10.1007/s00371-005-0296-0.
L. Shi, Y. Yu, C. Wojtan, and S. Chenney, “Controllable motion synthesis in a gaseous medium,” The Visual Computer, vol. 21, no. 7, pp. 474–487, 2005.
Shi L, Yu Y, Wojtan C, Chenney S. 2005. Controllable motion synthesis in a gaseous medium. The Visual Computer. 21(7), 474–487.
Shi, Lin, et al. “Controllable Motion Synthesis in a Gaseous Medium.” The Visual Computer, vol. 21, no. 7, Springer, 2005, pp. 474–87, doi:10.1007/s00371-005-0296-0.

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