本文選題：計(jì)算機(jī)圖形學(xué) + 水波模擬　； 參考：《東北師范大學(xué)》2009年碩士論文

【摘要】： 近年來(lái),自然景物的模擬一直是計(jì)算機(jī)圖形學(xué)最具挑戰(zhàn)的問(wèn)題之一,關(guān)于山水等自然景物的模擬,在計(jì)算機(jī)游戲、影視、廣告各領(lǐng)域中有著廣泛的用途,作為自然景物模擬的重要內(nèi)容,對(duì)水流、水波的模擬正日益引起人們的關(guān)注,但與其他景物模擬相比,關(guān)于水流的模擬又更為困難,這是因?yàn)樗髟诓煌闆r下形態(tài)各異,而且其顯示又有著特殊的要求。水流的運(yùn)動(dòng)具有不光滑性、不確定性、不規(guī)則性以及運(yùn)動(dòng)變化性,而且這種變化是非常復(fù)雜、混亂的,還會(huì)受到周圍環(huán)境的影響,要正確地對(duì)其運(yùn)動(dòng)進(jìn)行仿真,關(guān)鍵在于建立恰當(dāng)?shù)乃髂Ｐ?并且要采用適當(dāng)?shù)匿秩痉椒ā?本文在深入了解了完整流體力學(xué)方程以及在各種模擬工作中的簡(jiǎn)化形式的基礎(chǔ)上,分析總結(jié)了各種模型的適用范圍,最后根據(jù)本文的實(shí)際需要選用簡(jiǎn)化的二Navier-Stokes方程作為水波的模型。總結(jié)了有限差分法和有限體積法對(duì)二維N-S方程的求解過(guò)程以及它們?cè)诹黧w力學(xué)應(yīng)用中的優(yōu)缺點(diǎn)。根據(jù)需求,最后采用了有限體積法對(duì)方程進(jìn)行數(shù)值計(jì)算,使得求方程穩(wěn)定且效率高。選用了無(wú)結(jié)構(gòu)網(wǎng)格和有限體積法的組合進(jìn)行水波的造型。在建立光照模型的過(guò)程中,根據(jù)水波的物理特性,重點(diǎn)研究光的反射與折射。為了加快計(jì)算速度,引入了GPU。并在光影效果上引入了紋理處理技術(shù),增強(qiáng)了系統(tǒng)效果的逼真性。為計(jì)算機(jī)游戲、影視以及廣告等領(lǐng)域提供更為真實(shí)的模型設(shè)計(jì)。
[Abstract]:In recent years, the simulation of natural scenery has been one of the most challenging problems in computer graphics. As an important part of natural scene simulation, the simulation of water flow and water wave is attracting more and more attention, but compared with other scene simulation, the simulation of water flow is more difficult, because the water flow is different in shape under different conditions. And its display also has the special request. The motion of water flow is not smooth, uncertain, irregular and dynamic, and this change is very complex, chaotic, and affected by the surrounding environment. The key is to establish the appropriate flow model, and to use the appropriate rendering method. On the basis of deep understanding of complete hydrodynamic equations and simplified forms in various simulation work, this paper analyzes and summarizes the applicable scope of various models. Finally, the simplified two Navier-Stokes equation is chosen as the model of water wave according to the actual need of this paper. The process of solving two-dimensional N-S equations by finite difference method and finite volume method and their advantages and disadvantages in hydrodynamics are summarized. Finally, the finite volume method is used to calculate the equation, which makes the equation stable and efficient. The combination of unstructured mesh and finite volume method is used to model water wave. In the process of establishing illumination model, the reflection and refraction of light are studied according to the physical characteristics of water wave. In order to speed up the calculation, GPU is introduced. The texture processing technology is introduced into the effect of light and shadow, which enhances the lifelike of the system effect. Provides a more realistic model design for computer games, film and television, advertising and other areas.
【學(xué)位授予單位】：東北師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2009
【分類號(hào)】：TP391.41

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 唐秋華,陳定方,孔建益;虛擬環(huán)境建模方法及應(yīng)用[J];國(guó)外建材科技;2002年03期

2 黃師化,汪繼文;基于物理模型的水波動(dòng)畫(huà)模擬[J];合肥學(xué)院學(xué)報(bào)(自然科學(xué)版);2005年01期

3 陳前華,鄧建松,陳發(fā)來(lái);滴水漣漪的計(jì)算機(jī)動(dòng)畫(huà)模擬[J];計(jì)算機(jī)研究與發(fā)展;2001年05期

4 楊曉紅,劉書(shū)華;虛擬現(xiàn)實(shí)技術(shù)及其應(yīng)用[J];計(jì)算機(jī)時(shí)代;2002年01期

5 萬(wàn)華根,金小剛,彭群生;基于物理模型的實(shí)時(shí)噴泉水流運(yùn)動(dòng)模擬[J];計(jì)算機(jī)學(xué)報(bào);1998年09期

6 陳和平,王早;水波特效模擬原理及其快速實(shí)現(xiàn)方法[J];計(jì)算機(jī)應(yīng)用研究;2005年04期

7 熊漢偉,劉小鵬,張湘?zhèn)?利用照片建立虛擬現(xiàn)實(shí)模型[J];機(jī)械設(shè)計(jì)與制造;2002年04期

8 曾建超,徐光佑;虛擬現(xiàn)實(shí)技術(shù)的發(fā)展現(xiàn)狀與趨勢(shì)[J];計(jì)算機(jī)世界;1995年12期

，

本文編號(hào)：1920185