基于粒子系统的实时云层模拟研究与运用

发布时间：2018-06-10 05:58

本文选题：粒子 + 云层模拟系统　；参考：《电子科技大学》2013年硕士论文

【摘要】：自然景物模拟是计算机图形学的重要研究课题，其在3D网络游戏、电影电视广告，艺术装潢设计、虚拟现实场景等诸多领域应用较多，由于其优势明显，对于推动当今信息社会发展意义重大。可是，绝大多数自然景物并非一成不变的，而是随时间推移而运动和变化着，比如燃烧的火焰、飘动的云朵、江河湖泊、风霜雨雪等等，对于该类景物使用普通建模进行模拟很难描述得十分精准，使模拟自然景物这一研究课题充满了趣味与挑战。本文针对国内外云层模拟的现状进行了认真细致的研究与分析，并在此基础上与3D网络游戏、影视虚拟场景等各种实际应用与需求相结合，提出了基于粒子系统的虚拟云层的新型模拟方法。完成本文做了大量工作，其主要工作及研究成果包括以下内容：首先，分析了云层的运动情况，云层粒子运动的模拟可以通过随机粒子在系统中的不规则运动来实现，并能够提高云层粒子运动的灵活性。其次，本文在粒子的绘制上有所创新，没有采用经典粒子系统中的点光源粒子，而采用了多边形面片用以取代，，对于有效减少粒子系统中的粒子数量，以及有效提高系统实时性具有重要作用。最后，在Windows XP系统下使用VC++6.0结合OpenGL的三维动画环境功能，成功地对基于粒子系统的云层模拟系统进行了开发，通过实践表明，该模拟取得了良好的模拟效果。
[Abstract]:Natural scenery simulation is an important research topic in computer graphics. It is widely used in many fields, such as 3D network game, film TV advertisement, art decoration design, virtual reality scene and so on. Because of its obvious advantages, it is of great significance to promote the development of today's information society. However, most of the natural scenery is not the same but the following. Time goes on and moves and changes, such as burning flame, floating clouds, rivers and lakes, wind frost and rain and snow, and so on. It is difficult to accurately describe the use of ordinary modeling for such objects, so that the research subject of natural scenery is full of interest and challenge.
In this paper, the current situation of cloud simulation at home and abroad is carefully studied and analyzed. On this basis, the new simulation method of virtual cloud layer based on particle system is put forward with the combination of various practical applications and requirements, such as 3D network game, video virtual scene and so on.
A lot of work has been done in this paper. Its main work and research results are as follows:
First, the motion of cloud layer is analyzed. The simulation of cloud particle motion can be realized by random particles in the irregular motion of the system, and can improve the flexibility of cloud particle motion. Secondly, this paper has made some innovations in the drawing of particles, and did not use the point source particles in the classical particle system, and the polygon surface was adopted. Instead, it is important to effectively reduce the number of particles in the particle system and improve the real-time performance of the system. Finally, the cloud layer simulation system based on the particle system is successfully developed by using the 3D animation environment function of VC++6.0 combined with OpenGL under the Windows XP system. Good simulation results have been obtained.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP391.41;TP391.9

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