|
Has been the simulation of natural scenery is a hot research topic in computer graphics , a wide range of applications , including television ads, movie special effects , 3D games , virtual reality , and military applications , simulation of the natural landscape in the information age has a very important position . However , most of the natural features of the shape are random changes , such as : flame , rivers, waves , rain and snow , waterfall , smoke , etc. , it is difficult to describe using conventional modeling methods and simulation technology . The theory of particle system after 20 years of development , has become the most sophisticated simulation of natural scene simulation technology , it has also become a challenging subject . In this paper, based on research at home and abroad particle theory and the common model of the natural landscape , combined with the virtual scene of the film, television and other needs and applications , to facilitate teaching , friendly , interactive , realistic and real-time target , development After Effects SDK based particle system . (1) This article first in-depth study of two years of development and application of the particle system manager , in-depth analysis of the basic principles of particle systems , the basic model . ( 2 ) to simplify the mathematical model of the flame , clouds , snow, rain scene , summed up the flame , clouds , snow, rain scene particle system model . ( 3 ) designed and implemented a common natural scenery simulation system based particle effects in After Effects SDK . Of the system are the system requirements, the overall goal of the framework structure , system design and module function and its implementation detailed description . ( 4 ) Finally, the analysis based on the particle system in After Effects SDK Vocational Teaching , and summarizes the strengths and weaknesses of the system , and to lay the foundation for future research work .
|