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[1]彭 晶,陆 晓,李 晖*.基于投影网格算法的海面波浪模拟[J].武汉工程大学学报,2018,40(05):559-564.[doi:10. 3969/j. issn. 1674-2869. 2018. 05. 016]
 PENG Jing,LU Xiao,LI Hui*.Simulation of Sea Surface Waves Based on Projection Grid Method[J].Journal of Wuhan Institute of Technology,2018,40(05):559-564.[doi:10. 3969/j. issn. 1674-2869. 2018. 05. 016]
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基于投影网格算法的海面波浪模拟(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
40
期数:
2018年05期
页码:
559-564
栏目:
机电与信息工程
出版日期:
2018-12-27

文章信息/Info

Title:
Simulation of Sea Surface Waves Based on Projection Grid Method
文章编号:
20180516
作者:
彭 晶陆 晓李 晖*
武汉工程大学计算机科学与工程学院,湖北 武汉 430205
Author(s):
PENG Jing LU Xiao LI Hui*
School of Computer Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, China
关键词:
海浪模拟真实感绘制快速傅里叶变换投影网格算法
Keywords:
sea surface wave simulation realistic rendering fast Fourier transform projection grid method
分类号:
TP399
DOI:
10. 3969/j. issn. 1674-2869. 2018. 05. 016
文献标志码:
A
摘要:
针对海面波浪模拟中实时性与渲染效果无法同时兼顾的难题,提出了一种基于投影网格多细节层次的低采样频率算法。先用投影网格算法对海面建模,生成一个海平面网格,同时在近视点处降低采样频率,解决网格过密所造成的海面网格走样问题;再采用快速傅里叶变换计算海面高度场,为海面添加波浪;最后结合纹理动画技术和Normal Mapping算法添加海面纹理,并分三次对纹理进行采样,来增强海面的水纹细节,建立了具有高真实感的动态海面波浪模型。实验表明,该方法减少了计算量,具有实时性;还模拟了海面的细微扰动,提升了算法渲染的逼真度。
Abstract:
For solving the problem that the real-time and rendering effects can not be realized in the same time in the sea wave simulation, a low sampling frequency algorithm based on a multi-level detail algorithm of the projection grid was proposed. Firstly, a sea-surface model was constructed by using the projection grid algorithm to generate the sea-surface grid. Simultaneously, the grid aliasing of the sea-surface caused by over-density grid was solved by reducing the sampling frequency at near viewpoint. Then, the fast Fourier transform algorithm was adopted to calculate the sea-surface height field so as to add waves. Finally, the texture animation technology and normal mapping algorithm were combined to add texture of sea-surface. In addition, the texture was sampled three times to enhance the slight detail of the sea-surface. A dynamic sea-surface wave model with a high realism was presented. The experiments showed that the proposed method reduced the computational complexity, and satisfied the real-time demand. It also simulated the slight disturbance of the sea-surface, hereby improving the fidelity of the rendering.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-03-07基金项目:国家自然科学基金(51703071);湖北省教育厅科研重点项目(D20171504);武汉工程大学教学改革项目(X2016028);武汉工程大学研究生教育教学改革研究项目(yjg201607) 作者简介:彭 晶,硕士研究生。 E-mail:[email protected]*通讯作者:李 晖,博士,副教授。 E-mail:[email protected]引文格式:彭晶,陆晓,李晖. 基于投影网格算法的海面波浪模拟[J]. 武汉工程大学学报,2018,40(5):559-564.
更新日期/Last Update: 2018-10-23