Ocean waves synthesis using a spectrum-based turbulence function

Thon, Sébastien; Dischler, Jean‐Michel; Ghazanfarpour, Djamchid

doi:10.1109/cgi.2000.852321

Cited by 32 publications

(21 citation statements)

References 21 publications

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“…They generate very rich visual results, reproducing the complexity of running fluids at the price of high computation costs; except for [9] which deals with 2D fluids and [22] that introduces a scheme allowing stability even out of the time step range required by the physical simulation. -Signal processing approaches [19,21,4,13,24], also based on intensive calculations (far less than CFD, however), can be qualified as 'phenomenological' in that they aim at reproducing the effects (spatio-temporal shape or force field) without looking at the causes, oppositely to CFD. The problem is that statistical models tend to lose persistent features (e.g., eddies) and that a good model accounting for static distribution (e.g., for clouds density) doesn't trivially yield a good animated model.…”

Section: Previous Workmentioning

confidence: 99%

Phenomenological Simulation of Brooks

Neyret

Praizelin

2001

Eurographics

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Abstract. The goal of our work is to simulate the shape and variations of the water surface on non-turbulent brooks both efficiently and at very high resolution. In this paper, we treat only the shape and animation. We concentrate on the simulation of quasi-stationary waves and ripples in the vicinity of obstacles and banks, and more particularly, shockwaves. To achieve this, we rely on phenomenological laws such as the ones collected over the last two centuries in the field of hydrodynamics: most of the visually interesting phenomena (apart from turbulence) are known qualitatively and characterized in reasonably simplified situations. It is thus wasteful to run a full-range Navier-Stokes simulation for quiet flows when only qualitative results are needed. The complexity of the velocity field along the streambed and around the obstacles is taken into account by solving a simple Laplace equation, assuming a stationary irrotational non-compressible ideal 2D flow. We obtain a stationary solution of the surface waves, that we perturb in order to get a quasi-stationary brook simulation. This yields a real-time simulation of the fluid visible features.

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Section: Previous Workmentioning

confidence: 99%

Phenomenological Simulation of Brooks

Neyret

Praizelin

2001

Eurographics

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“…In Hinsinger [11], they manually selected all these parameters, and thus, the user may meet difficulties to select proper values of them. In contrast, Thon [12] uses a spectrum-based method to find some reasonable parameter sets. They used the Pierson-Moskowitz(PM) model [13], which empirically expresses a fully developed sea in terms of the wave frequency f as follows:…”

Section: The Ocean Wave Modelmentioning

confidence: 99%

Real-Time Simulation of Surface Gravity Ocean Waves Based on the TMA Spectrum

Lee

Baek

Ryu

2007

Lecture Notes in Computer Science

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Abstract. In this paper, we present a real-time method to display ocean surface gravity waves for various computer graphics applications. Starting from a precise surface gravity model in oceanography, we derive its implementation model and our prototype implementation shows more than 50 frames per second on Intel Core2 Duo 2.40GHz PC's. Our major contributions will be the improvement on the expression power of ocean waves and providing more user-controllable parameters for various wave shapes.

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“…However, we want to take into account the combination of many different waves. To do so, we generate wave trains in a way that approaches a known wave spectrum, in the same spirit as Thon et al [Thon et al 2000]. Note that our model is dedicated to deep waters, and thus does not cover waves refraction near shore nor wave breaking.…”

Section: Wave Modelmentioning

confidence: 99%

“…They are chosen manually in our implementation, although an automatic choice such as the one in [Thon et al 2000] could be used as well.…”

Section: K Imentioning

confidence: 99%

Interactive animation of ocean waves

Hinsinger¹,

Neyret²,

Cani³

2002

Proceedings of the 2002 ACM SIGGRAPH/Eurographics Symposium on Computer Animation

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We present an adaptive scheme for the interactive animation and display of ocean waves far from the coast. Relying on a procedural wave model, the method restricts computations to the visible part of the ocean surface, adapts the geometric resolution to the viewing distance and only considers the visible waves wavelengths. This yields real-time performances, even when the camera moves. The method allows the user to interactively fly over an unbounded animated ocean, which was not possible using previous approaches.

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Ocean waves synthesis using a spectrum-based turbulence function

Cited by 32 publications

References 21 publications

Phenomenological Simulation of Brooks

Phenomenological Simulation of Brooks

Real-Time Simulation of Surface Gravity Ocean Waves Based on the TMA Spectrum

Interactive animation of ocean waves

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