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Real-Time Atmospheric Effect Render in Space Visualization

Author: ZhaoHongLi
Tutor: LiXiuBing；LiYingYu
School: Graduate School, Chinese Academy of Sciences
Course: Applied Computer Technology
Keywords: Real - time atmospheric rendering GLSL Rayleigh scattering Mie scattering Optical depth Ray Casting
CLC: TP391.41
Type: Master's thesis
Year: 2009
Downloads: 56
Quote: 0
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Abstract


With the continuous development of space science mission simulation technology , a substantial increase in demand for visualization . At the same time , the display hardware is constantly evolving , so that visual effects and also put forward higher requirements . Faster, better , and portability of real time the atmospheric rendering algorithms is imperative in order to meet the needs of a variety of Earth, Atmospheric effects of spatial visualization , rendering speed . This paper studied the physical properties of the atmosphere , the mathematical model , as well as classic atmospheric rendering method . Compared draw speed , draw effect, resource consumption , and other aspects the classic advantages and disadvantages of the method , summarizes and analyzes the emphasis and difficulty in the atmosphere in the drawing process . And prone to distortion and causes . Through careful study and constantly explore , on the basis of the previous two sets of real-time rendering of atmospheric effects on the CPU and GPU algorithms . A detailed explanation of one of the key technologies and key steps . And rendering speed and rendering effects on the superiority of the proposed method is verified by experiments . During the experiment , feelings and experiences, and discuss the practical skills in the process of writing shader programs , and the solution of the problems encountered in the shader algorithm proposed in this paper . The subject of research and the realization of the system , has opened up new channels for future space science missions simulation visualizations . Similar atmospheric effect rendering technology development has laid a good foundation for simulation visualization .

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