A method for cartoon-style rendering of liquid animations

Eden, A.; Bargteil, Adam W.; Goktekin, Tolga G.; Eisinger, Sarah Beth; O’Brien, James F.

doi:10.1145/1268517.1268528

Cited by 19 publications

(13 citation statements)

References 36 publications

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“…The splash using particles ( Figure 13(a)), the garden hose ( Figure 13(b)), cartoon rendering style for liquid animations (Figure 13(c)), and a moving hippopotamus (Figure 13(d)) are taken from Refs. [10][11][12] and [14], respectively. In the first two examples particles are used to represent the water, and the generated effects look different from those hand-drawn water effects (Figure 1) in visual style.…”

Section: Resultsmentioning

confidence: 99%

“…Thornton [11] used a modular rig composed of a series of nodes to describe the shape of hand-drawn splash, and the splash effects are generated by constraining particle emitters to these nodes. Eden et al [12] take as input a liquid surface obtained from a 3D physically based liquid simulation system, and render this with bold outlines and constant colors to highlight near-silhouettes and shallow areas. Yu et al [13] propose a template based approach in which some stylized water forms are placed on templates and animated along a path.…”

Section: Introductionmentioning

confidence: 99%

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Modeling ocean waves and interaction between objects and ocean water for cartoon animation

Liao

Patterson

2011

Computer Animation & Virtual

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We present a scheme for the animation of ocean waves in a recognizable drawn animation cartoon style. This consists principally of two parts: the first part is the ocean surface generated by a procedural model which governs the dynamics of the ocean surface and rendered with stylized whitewater forms over the ocean wave crests; the second part is water effects caused by interactions between the ocean water and obstacle objects, such as waves crashing against obstacles-like rocks or boats and forms surrounding objects, and those effects are simulated with different hierarchical models. The ocean surface can be used either alone or in conjunction with effects caused by the interactions according to the scene. With minimum user intervention, i.e., specification of a few parameters, our model is able to generate cartoon ocean wave animations using these procedural methods, as shown by examples given in the paper.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modeling ocean waves and interaction between objects and ocean water for cartoon animation

Liao

Patterson

2011

Computer Animation & Virtual

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“…Researchers have addressed non-photorealistic rendering (NPR) of fluids, for example cartoon rendering for liquid [Eden et al 2007;You et al 2009;Yu et al 2007], smoke [He and Xu 2005;McGuire and Fein 2006;Selle et al 2004], and fire [Di Fiore et al 2004].…”

Section: Related Workmentioning

confidence: 99%

Stylized keyframe animation of fluid simulations

Browning

Barnes

Ritter

et al. 2014

Proceedings of the Workshop on Non-Photorealistic Animation and Rendering

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simulation 45 keyframe 50 in-between 53 in-between 57 keyframe 60 in-between 65 keyframe 70Figure 1: 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. AbstractWe 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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“…(2) Fluid simulation based, such as the work by Eden et al, 12 this method takes as input a liquid surface obtained from a 3D physically based liquid simulation system, and stylizes this with bold outlines, patches of constant color to highlight nearsilhouettes and shallow areas on the liquid surface. (3) Template based, such as those proposed by Yu et al., 13 in which cartoon water shapes are placed on templates and animated along a path.…”

Section: Related Workmentioning

confidence: 99%

Modeling the interaction between objects and cartoon water

Yu¹,

Liao

Patterson³

2008

Computer Animation & Virtual

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In this paper, we describe a method for modeling the interaction between objects and the cartoon water which does not involve physics simulations. Our method involves the definition of flow path lines in the presence of obstacles, modeling of different types of water forms, and combinations of them in space and time. There are several notable features with our method: easy setting with little user intervention, modeling of complex water forms that represent more energetic water behavior than has been encompassed by semi-automatic means so far, and the adaptive change of animated water forms to the variation of obstacle object in number, size, and shape in the water path. A number of formulae for managing shape and time variance in these animations are given. We tested our method with both still and moving objects that have different shape and size in the water and relevant examples are given in the paper.

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A method for cartoon-style rendering of liquid animations

Cited by 19 publications

References 36 publications

Modeling ocean waves and interaction between objects and ocean water for cartoon animation

Modeling ocean waves and interaction between objects and ocean water for cartoon animation

Stylized keyframe animation of fluid simulations

Modeling the interaction between objects and cartoon water

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