三维实时动态海底环境渲染研究  

Real-time Rendering of 3D Dynamic Seabed Environment

作　　者：丁静静 马国军[1,2] 朱琎 曾庆军 DING Jing-jing;MA Guo-jun;ZHU Jin;ZENG Qing-jun(School of Electronics and Information,Jiangsu University of Science and Technology,Zhenjiang Jiangsu 212003,China;Key Laboratory of Intelligent Ocean Information Perception and Transmission in Zhenjiang,Zhenjiang Jiangsu 212003,China)

机构地区：[1]江苏科技大学电子信息学院,江苏镇江212003 [2]镇江市智慧海洋信息感知与传输重点实验室,江苏镇江212003

出　　处：《计算机仿真》2021年第11期404-409,共6页Computer Simulation

基　　金：国家自然科学基金项目(11574120);江苏省产学研合作项目(BY2018035)。

摘　　要：针对海底环境渲染过程中地形复杂、数据量大且海水与地形、光线之间复杂的相互作用,实时渲染海底环境费时费力等问题,提出多元素融合的渲染方法。利用提取数字高程数据,建立obj模型,将模型与纹理结合完成地形渲染。在此基础上,将视频文件分解为静态图像,通过计时器生成动态刻蚀,运用光线步进技术和粒子系统完成光束的模拟和气泡的动态可视化,实现整个海底环境的动态渲染。实验结果表明,多元素融合渲染方法能够实时实现海底环境的动态渲染,提高绘制效率并改善绘制效果。Aiming at the problems of complex terrain,a large amount of data,complex interactions between seawater,terrain,and light during the rendering of the seabed environment,time-consuming and laborious real-time rendering of the seabed environment,a multi-element fusion rendering method is proposed.Using the extracted digital elevation data,the obj model was established,and the model was combined with the texture to complete the terrain rendering.On this basis,the video file was decomposed into static pictures,a timer was used to generate dynamic caustics,and the ray marching technique and particle system were used to complete the shafts simulation and the dynamic visualization of bubbles to realize the dynamic rendering of the entire seabed environment.Experimental results show that the multi-element fusion rendering method can realize dynamic rendering of the seabed environment in real-time,improve rendering efficiency and improve rendering effects.

关 键 词：实时动态可视化 数据模型转换 动态纹理 光线步进 粒子系统 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]