基于预积分体渲染技术的水下三维声场体可视化

Underwater Acoustic Energy Fields Visualization Based on Technology of Pre-Integrated Volume Rendering

海洋水声环境对海军作战具有重要影响。三维可视化技术能够更直观、有效地刻画和描述海洋水声环境,提高作战指挥人员对环境效应的理解和应用。该技术应用OpenGL的多纹理技术,采用预积分体渲染方法对舰艇水下三维声场进行体可视化表达。在对可视化效果的讨论中发现,采用预积分纹理映射方法在不增加切片数量、不增加绘制时间情况下,提高了图形质量,较好的解决了传统切片纹理映射方法的缺点,使指挥人员能够更加清楚地得到此时舰艇水下声传播规律,声场结构,为其制定战术决策提供可靠的技术支持。

The acoustic environment of the ocean influences on naval battles, so how to keep the view and depict the underwater environment has an important meaning towards raising the directing personnel comprehension and applications of the environment. Visualization provides a valid means to resolve this problem, With applying the technology of OpenGL multi-textures and pre-integrated volume rendering, volume rendering in underwater acoustic energy field visualization gives a new method to study the underwater environment. During the discussion of the result of visualization, the defect of conventional volume rendering was overcome without increasing the number of clipping planes and the time of rending, and commanders were helped to get the structure of underwater acoustic energy fields and a hand for the assistant decision-making was given.