A novel approach to simulate wind-driven ocean waves in the deep ocean

Weerasinghe, Maheshya; Sandaruwan, Damitha; Keppitiyagama, Chamath; Kodikara, Nihal

doi:10.1109/icter.2013.6761151

Cited by 4 publications

(13 citation statements)

References 28 publications

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“…However, when the computed results of [40] were applied in rendering, the amplitude of the generated ocean wave was malformed [41]. None of [27] - [39] gave the derivation of the IFFT Gerstner wave model. Consequently, the author of this paper provided complete derivation, and found that both expressions (5) and (6) omitted the area of the discrete integral domain, denoted by Δs k .…”

Section: Ocean Wave Rendering Based On the Gerstner Wave Modelmentioning

confidence: 99%

“…Although the Phillips spectrum has widely been used, none of [27] - [39] provided the value of A Ph . The author of this paper analyzed the structure of the spectrum and found that A Ph = 3.48 × 10, and U, the wind velocity, should be U 19.5 [40].…”

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%

“…To simulate the ship wave, several approaches were tried, such as the moving grid with particle-based ship motion [36], Perfectly Matched Layers grid [37] and multi-LOD grid [38]. Additionally, Weerasinghe et al [39] combined the ship motion model with the geometry of the IFFT sea surface.…”

Section: Ocean Wave Rendering Based On the Gerstner Wave Modelmentioning

confidence: 99%

“…The most frequently used wave number spectrum in rendering is the Phillips spectrum [27] - [39]. It is expressed as…”

Section: Ocean Wave Rendering Based On the Gerstner Wave Modelmentioning

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%

Section: Ocean Wave Rendering Based On the Gerstner Wave Modelmentioning

confidence: 99%

“…The most frequently used wave number spectrum in rendering is the Phillips spectrum [27] - [39]. It is expressed as…”

Section: Ocean Wave Rendering Based On the Gerstner Wave Modelmentioning

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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Dynamic Grid Sea Surface Simulation Using Tessellation

Mao¹,

Chen²,

Yuan³

2018

dtetr

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In order to reduce the resource consumption and enhance the effect in the simulation of large-scale ocean scenes, a dynamic grid algorithm based on viewpoint is proposed to remove unnecessary vertices outside the field of view. At the same time, the GPU hardware accelerated Tessellation is used to adaptively subdivide the sea surface grid inside the GPU. Refine the sea surface grid to meet the needs of high-precision grids near the field of view and low-precision grids far away from the field of view. Finally, using Perlin noise texture to simulate the natural sea surface. Experiments show that the algorithm improves the efficiency of generating the sea surface grid and improves the rendering frame rate while exhibiting realistic ocean visual effects.

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Real-Time Wave Simulation of Large-Scale Open Sea Based on Self-Adaptive Filtering and Screen Space Level of Detail

Duan,

Liu,

Wang

2024

JMSE

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The real-time simulation technology of large-scale open sea surfaces has been of great importance in fields such as computer graphics, ocean engineering, and national security. However, existing technologies typically have performance requirements or platform limitations, and the two are often impossible to balance. Based on the camera-view-based screen space level of detail strategy and virtual camera pose adaptive filtering strategy proposed in this article, we have developed a fast and comprehensive solution for rendering large-scale open sea surfaces. This solution is designed to work without the need for special hardware extensions, making it easy to deploy across various platforms. Additionally, it enhances the degrees of freedom of virtual camera movement. After conducting performance tests under various camera poses, our filtering strategy was found to be effective. Notably, the time cost of simulation using 60 waves at the height of 6 m above sea level was only 0.184 ms. In addition, we conducted comparative experiments with four state-of-the-art algorithms currently in use, and our solution outperformed the others with the best performance and suboptimal visual effects. These results demonstrate the superiority of our approach in terms of both efficiency and effectiveness.

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A novel approach to simulate wind-driven ocean waves in the deep ocean

Cited by 4 publications

References 28 publications

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

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

Dynamic Grid Sea Surface Simulation Using Tessellation

Real-Time Wave Simulation of Large-Scale Open Sea Based on Self-Adaptive Filtering and Screen Space Level of Detail

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