Interactive localized liquid motion editing
By Zherong Pan, Jin Huang, Y. Tong, Changxi Zheng, Hujun Bao. 2013
67 citations recorded by the source corpus.
Animation techniques for controlling liquid simulation are challenging: they commonly require carefully setting initial and boundary conditions or performing a costly numerical optimization scheme against user-provided keyframes or animation sequences. Either way, the whole process is laborious and computationally expensive. We introduce a novel method to provide intuitive and interactive control of liquid simulation. Our method enables a user to locally edit selected keyframes and automatically propagates the editing in a nearby temporal region using geometric deformation. We formulate our local editing techniques as a small-scale nonlinear optimization problem which can be solved interactively. With this uniformed formulation, we propose three editing metaphors, including (i) sketching local fluid features using a few user strokes, (ii) dragging a local fluid region, and (iii) controlling a local shape with a small mesh patch. Finally, we use the edited liquid animation to guide an offline high-resolution simulation to recover more surface details. We demonstrate the intuitiveness and efficacy of our method in various practical scenarios.
Subfields: Computational Mechanics, Computer Graphics and Computer-Aided Design, Computer Vision and Pattern Recognition
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Citations in the corpus
- Latent Space Physics: Towards Learning the Temporal Evolution of Fluid Flow (2018, background): “bulence [Kim et al. 2008], or narrow band algorithms [Ferstl et al. 2016], to name just a few examples. In addition, an important aspect for many simulations is artistic control [Nielsen et al. 2009; Pan et al. 2013]. A good overview of fluid simulations for computer animation can be found in the bo”
- Blending liquids (2014, unknown): “Similarly, some researchers have used guide behaviors to make liquid surfaces follow a predefined path or shape [Nielsen and Bridson 2011; Raveendran et al. 2012; Pan et al. 2013].”