Ocean waves synthesis and animation using real world information

Thon, Sébastien; Ghazanfarpour, Djamchid

doi:10.1016/s0097-8493(01)00161-3

Cited by 24 publications

(23 citation statements)

References 19 publications

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Section: Ocean Wave Rendering Based On the Gerstner Wave Modelmentioning

confidence: 99%

“…Thon et al [16] and Fréchot [17] employed the directional spectrum to compute the amplitude of the cosine wave. The spectrum is obtained from oceanographic observation, so the works of [16], [17] combined the observational oceanographic data with the Gerstner wave model. Some approaches to optimize the geometry of the sea surface include the perspective grid [18] and Level of Detail (LOD) technique [19], [20].…”

Section: Ocean Wave Rendering Based On the Gerstner Wave Modelmentioning

confidence: 99%

“…As introduced above, we find that the existing research on Gerstner wave rendering focuses mainly on basic rendering methods [15], [17], wave spectrum sampling [16], [17], [31], [32], the sea surface geometry grid [18] - [20], [28] - [30], texture mapping [33], [34], illumination [21], [35] and the interaction between the ocean wave and the environment [24], [36] - [39]. Although many works have been carried out, research on whitecap rendering is limited.…”

Section: Whitecap Renderingmentioning

confidence: 99%

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Ocean Wave Rendering with Whitecap in the Visual System of a Maritime Simulator

Chen

Yin

2017

CIT

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The whitecap is an important oceanographic phenomenon. However, existing whitecap rendering methods do not successfully generate realistic whitecaps. To solve this problem, this paper presents a real-time whitecap rendering method applied to the visual system of a maritime simulator. The method takes the vertical acceleration on the wave crest as the criterion of whitecap generation. The Fourier coefficient of the vertical acceleration is provided, and a continuous mathematical model computing the whitecap coverage is built. The vertical acceleration is the variable of the model. The lifetime of the whitecap's existence can be controlled by the parameter of the model, and the parameter is computed with the genetic algorithm. The average of the computed whitecap coverage is equal to the whitecap coverage computed by the stochastic method and is close to the whitecap coverage computed by the empirical formula. The whitecap coverage is used as the blending factor to blend the pixel color of the whitecap texture and that of the sea surface. The presented method has sound theoretical support, with small computational complexity. The rendered whitecap is closer to the description of the Beaufort wind force scale than before.

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Section: Ocean Wave Rendering Based On the Gerstner Wave Modelmentioning

confidence: 99%

Section: Ocean Wave Rendering Based On the Gerstner Wave Modelmentioning

confidence: 99%

Section: Whitecap Renderingmentioning

confidence: 99%

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Ocean Wave Rendering with Whitecap in the Visual System of a Maritime Simulator

Chen

Yin

2017

CIT

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“…For the parametric model, we also need to know which set of wave vectors characterizes the surface we want to generate. The more natural method is to use records of surface elevation measurement data used by oceanic engineering (Thon and Ghazanfarpour, 2002). Measurements are made with accelerometers mounted on buoys, satellite altimeters, high frequency radars and others techniques.…”

Section: Wave Spectramentioning

confidence: 99%

“…This decomposition of the surface elevation gives a histogram of wave frequencies ω, with corresponding amplitudes and possibly directions, known as frequency amplitude spectrum. The same analysis method can be used with oceanic surface photographs (Tessendorf, 2001) (Thon and Ghazanfarpour, 2002). …”

Section: Wave Spectramentioning

confidence: 99%

Realistic Simulation of Ocean Surface Using Wave Spectra

Fréchot

2006

Proceedings of the First International Conference on Computer Graphics Theory and Applications

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Abstract:We present a method to simulate ocean surfaces away from the coast, with correct statistical wave height and direction distributions. By using classical oceanographic parametric wave spectra, our results fit real world measurements, without depending on them. Since wave spectra are independent of the ocean model, Gerstner parametric equations and Fourier transform method can be used with them. Moreover, since they are simple to use and need very few parameters, they allow easy production of ocean surface animations usable in movies and games. We explain how to accurately sample them, to achieve oceanic waves in deep water according to given wind parameters, in a realistic way.

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