基于粒子系统的虚拟喷泉的仿真与实现

发布时间：2019-07-01 16:30

【摘要】： 自然景物的模拟一直是计算机图形学中的热门研究课题,其应用范围很广,包括影视广告、实时绘制、3D游戏、装演设计、虚拟场景等各种领域,以其独特的魅力在信息化社会中占据着重要的位置。然而,大多数自然景物的外形是随机变化的,如:火焰、浪花、河流、瀑布、雨雪、烟雾等,很难用常规的建模方法及模拟技术来描述,因此自然景物的模拟也是具有挑战性的课题。本文在认真分析和总结目前国内外喷泉模拟的基础上,结合游戏、电影等虚拟场景需求和应用,以友好的交互性、真实感和实时性为目标,提出一种基于粒子系统的虚拟喷泉的新模拟方法。所做主要工作和研究成果如下: 通过对喷泉运动的分析,利用随机粒子在系统中不规则运动来模拟喷泉粒子运动,从而使喷泉粒子的运动更加灵活。并针对于喷泉模拟效果上进行了改进。根据不同喷孔所产生喷泉水珠的不同溅落效果,在原绘制喷泉基础上,加强了对于喷泉水珠粒子落在水面上产生的水花和波纹效果的模拟,增加了喷泉效果的真实感。此外本文还运用多边形面片代替经典粒子系统中的点光源粒子来绘制粒子,从而大大减少了粒子系统中粒子的数量,提高了系统的实时性。最后,采用VC++6.0为编程工具,三维动画环境由OpenGL支持,在Windows XP环境下开发了基于粒子系统的喷泉模拟系统,模拟效果真实。
[Abstract]:The simulation of natural scenery has been a popular research topic in computer graphics. It has a wide range of applications, including movie and television advertising, real-time rendering, 3D games, play design, virtual scene and other fields, with its unique charm occupying an important position in the information society. However, the shape of most natural scenery is random, such as flame, wave, river, waterfall, rain and snow, smoke, etc. It is difficult to describe the conventional modeling method and simulation technique, so the simulation of natural scenery is also a challenging subject. In this paper, on the basis of careful analysis and summarization of current domestic and foreign fountain simulation, a new simulation of virtual fountain based on particle system is put forward based on the virtual scene requirements and applications of game, film and so on. Methods. Main work and research results by analyzing the movement of the fountain, the movement of the fountain particles is simulated by the irregular movement of the random particles in the system, so that the fountain particles are transported It's more flexible. It's for the fountain's simulation. According to the different splash effect of the fountain water drops generated by different spray holes, the simulation of the water flowers and the ripple effect generated on the water surface of the fountain bead particles is enhanced on the basis of the original drawing fountain, and the fountain effect is increased In addition, a polygon patch is used instead of the point light source particles in the classical particle system to draw the particles, so that the number of particles in the particle system is greatly reduced and the system is improved. Finally, VC ++ 6.0 is used as the programming tool, the three-dimensional animation environment is supported by OpenGL, and the fountain simulation system based on particle system is developed under the environment of Windows XP.
【学位授予单位】：东北师范大学
【学位级别】：硕士
【学位授予年份】：2008
【分类号】：TP391.9

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