Visual Simulation Of Water Spray Of Air Tanker For Extinguishing Fire Based On Vega Prime

With the fast development of China aviation industry,the project of Air Tanker rescue fire fighting has entered the development stage,do the research of visual scenesimulation of fire drowning of the plane is good for shorting the development cycle ofthe plane and improving the quality of research and experiment and saving the cost ofthe experiment.In the application of visual scene simulation of the plane of fire drowning,3Dmodeling and scene drive are two important aspects. At present, there are many3Dmodeling tools, in the article,after comparing and analyzing the today’s all kinds ofpopular3D modeling software, according to the actual situation of the need, use the3DS Max and MultiGen Creator software establish the static model of the object in thescene. The model file is saved by data format of OpenFlight(.flt), the modeling methodof extinguishing the plane and the key technology of model optimization arediscussesed at the same time. The drive of scene is developed by API functions ofVisual Studio.Net2003and Vega Prime.In this part,the development method of thesimulation drive is discussesed,and the method of basing on the development ofwindows object-oriented program in MFC framework is discussesed detailedly as wellas key technology.The particle system of special effect module in Vega Prime is studieddeeply and use it simulate special effects of the plane fire drowning. In the process ofsimulation,the particle is described by facing the viewpoint polygons. The ACF filewhich is useded in the drive is configured by Lynx Prime which the graphical userinterface configuration tool of Veag Prime,reducing the writing code multifariousdegrees and improving the efficiency of the program development. In the process ofdriver development,the model which complexity is larger is reduced the renderingprocess model in the scene of the loading and graphics drawing time by modeloptimization and packaging technology,so the efficiency of rendering is improved.In theprocess of Air Tanker drowns water to fire, the significance of drowning simulation isincreased by adding different weather conditions and different regulation of theobserving viewpoint.Developing program in the MFC framework can makes its have goodhuman-machine interface and increases the interactivity of the scene simulation. Thetexture of the fire and drip which are made by texture fusion technology are loaded toenvironment,the simulation fidelity of scene is improved.The the render efficiency andreal-time of the scene are improved by using the technology of optimization andpackaging multithreading.