本文選題：粒子系統(tǒng) + 自然界模擬��； 參考：《東北師范大學(xué)》2010年碩士論文

【摘要】： 計算機(jī)圖形學(xué)是隨著計算機(jī)及其外圍設(shè)備而產(chǎn)生和發(fā)展起來的,而隨著計算機(jī)技術(shù)的飛速發(fā)展,如何逼真的模擬自然景物,成為圖形學(xué)領(lǐng)域中最具用挑戰(zhàn)性的研究方向之一,對于煙霧、云、瀑布、閃電、雨雪、火焰、花草樹木等自然景物的逼真模擬,在航空航天、影視廣告、汽車、電子、和虛擬場景等各大領(lǐng)域中具有廣泛的應(yīng)用。在這眾多的自然景物中,煙霧的外觀形狀非常不規(guī)則,沒有光滑的表面,屬于可變形流體現(xiàn)象,且運動規(guī)律受溫度、風(fēng)向等外界因素影響巨大。因此對煙霧的模擬一直是不規(guī)則物體模擬的難點和熱點。 本文深入的研究了粒子系統(tǒng)模擬煙霧的方法,并把這個方法應(yīng)用到白磷燃燒的化學(xué)實驗中,對國內(nèi)外已有的煙霧模擬算法進(jìn)行了闡述、分析與總結(jié),并闡明了粒子系統(tǒng)在建模不規(guī)則自然景物方面的幾個優(yōu)點。其次,討論了煙霧模型中煙霧粒子從產(chǎn)生到消亡的屬性變化,包括對煙霧粒子的形狀、大小、顏色、位置、速度和生命周期等。根據(jù)煙霧的擴(kuò)散因素,在原算法的基礎(chǔ)上,顯示白磷燃燒發(fā)光發(fā)熱的效果,引入溫度條件對白磷所產(chǎn)生的煙霧的效果進(jìn)行精細(xì)模擬。并在繪制過程中,通過紋理貼圖為系統(tǒng)添加背景圖片使產(chǎn)生的煙霧更加形象逼真,實現(xiàn)人機(jī)交互功能。 最后,采用VisualC++語言為編程工具,三維動畫環(huán)境OpenGL圖形庫支持設(shè)計了一個演示系統(tǒng),實現(xiàn)文中算法,實驗證明,改進(jìn)后的煙霧模擬算法可以在普通PC機(jī)上實現(xiàn)白磷燃燒所產(chǎn)生煙霧的模擬。
[Abstract]:Computer graphics is produced and developed with the computer and its peripheral equipment. With the rapid development of computer technology, how to simulate natural scenery realistically becomes one of the most challenging research directions in the field of graphics. For smog, cloud, waterfall, lightning, rain, snow, flame, flowers and trees and other natural scenery lifelike simulation, in aerospace, film and television advertising, automobile, electronics, virtual scene and other fields have a wide range of applications. In these natural scenery, the appearance of smoke is very irregular, no smooth surface, belong to deformable fluid phenomenon, and the law of movement is greatly affected by external factors such as temperature, wind direction and so on. Therefore, the simulation of smoke is always the difficulty and hot spot of irregular object simulation. In this paper, the particle system simulation method of smoke is deeply studied, and the method is applied to the chemical experiment of white phosphorus combustion. The existing smoke simulation algorithms at home and abroad are described, analyzed and summarized. Several advantages of particle system in modeling irregular natural scenery are expounded. Secondly, the changes of the properties of smoke particles from generation to extinction are discussed, including the shape, size, color, position, speed and life cycle of smoke particles. According to the diffusion factor of smoke, the effect of white phosphorus combustion is shown on the basis of the original algorithm, and the effect of white phosphorus smoke is simulated by introducing temperature condition. In the process of drawing, adding background pictures to the system through texture mapping can make the smoke more vivid and realize man-machine interaction function. Finally, a demonstration system is designed by using VisualC language as programming tool and OpenGL graphics library as the support of 3D animation environment. The algorithm in this paper is realized, and the experiment proves that, The improved smoke simulation algorithm can simulate the smoke generated by white phosphorus combustion on PC.
【學(xué)位授予單位】：東北師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2010
【分類號】：TP391.41

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 王靜;基于OGRE的攪拌設(shè)備三維仿真系統(tǒng)的設(shè)計與實現(xiàn)[D];南京理工大學(xué);2012年

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本文編號：1781656