一种简化虚拟海洋环境建模与渲染方法  

Virtual Ocean Environment Modeling and Rendering Research

作　　者：王金华[1] 严卫生[1] 刘旭琳[1] 

机构地区：[1]西北工业大学航海学院,西安710072

出　　处：《系统仿真学报》2009年第13期3985-3988,3996,共5页Journal of System Simulation

基　　金：教育部新世纪优秀人才支持计划资助(教纪支[2005]290)

摘　　要：海洋环境的可视化与虚拟现实是数字海洋研究领域的重要发展方向之一,是开展海洋科学研究与军事训练的有效手段。以Vega Prime和Visual C++.NET为开发平台,对虚拟海洋的建模与环境生成技术进行了深入研究;提出了一种多维描述层形式构建虚拟海洋模型,并介绍了该模型的体系结构;此外,还提出一种动态纹理映射技术取代粒子系统,对漂浮物、泡沫和鱼群等进行模拟,大幅度降低计算量;该系统同时还提供了风成浪的数学模型以及海洋LOD技术研究;实现了在计算机系统中一定范围的虚拟海洋环境的模拟。开发和应用结果表明,该系统实时性好,效果逼真,具有一定的工程意义。The technology of visualization and Virtual Reality （VR） for marine environment is one of the most important methods utilized in digital ocean science. And this is the base and effective technique for the ocean research and military training. The professional platforms such as Vega Prime and Visual C＋＋.NET were employed for the modelling and the generation of marine environment. Then an ocean model of multidimensional representation layer and architecture of whole system were presented consummately. Besides, one kind of texture animation in Vega Prime as a substitute for particle system, which was used to implement accurate simulation of floater, foam and shoal and took less processing resources, was proposed. The simulator also provides the mathematics model of wind-generated waves and its LOD technology. In summary, the virtual marine environment within a range in computer system is shown realistically. The results of application show that this system is the good real-time characteristic and high fidelity. This research has large value and good prospect in project.

关 键 词：虚拟海洋环境 视景仿真 VEGA PRIME 海浪 实时性 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]