本文關(guān)鍵詞：移動平臺復(fù)雜光照下皮膚繪制系統(tǒng)　出處：《浙江大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 移動平臺 人體皮膚 復(fù)雜光照 動態(tài)光源 預(yù)計算

【摘要】：光在自然界傳播時,由于物理規(guī)律以及不同物質(zhì)具有不同的折射率散射率等光學(xué)特性,就會產(chǎn)生豐富多彩的視覺效果,比如陰影、表面高光、環(huán)境光遮擋以及一些材質(zhì)的半透明效果等。在真實感繪制領(lǐng)域,人們通過各種繪制算法繪制這些效果產(chǎn)生逼真的畫面從而為用戶提供更為豐富的感官體驗。然而,人體皮膚作為一種特殊材質(zhì),由于其復(fù)雜的生理結(jié)構(gòu),光在其表面和內(nèi)部的真實傳播過程異常復(fù)雜,難以通過計算機進(jìn)行準(zhǔn)確模擬,這就導(dǎo)致皮膚的真實感繪制一直是繪制領(lǐng)域中比較有挑戰(zhàn)性的工作。近幾年,隨著硬件設(shè)備的快速發(fā)展,PC上各種不同的皮膚繪制算法不斷涌現(xiàn),并且不少算法已經(jīng)廣泛的應(yīng)用到游戲和電影等圖形繪制領(lǐng)域。但是隨著移動設(shè)備井噴式增長,人們對移動端的高質(zhì)量游戲和沉浸式虛擬現(xiàn)實體驗需求顯著增加,然而由于移動平臺計算能力有限,實時進(jìn)行復(fù)雜光照下的真實感皮膚繪制非常困難。如何在移動端進(jìn)行復(fù)雜光照下皮膚的實時繪制,就是本篇論文所要解決的問題。本文首先設(shè)計了一個高質(zhì)量的移動平臺繪制框架,能夠充分利用移動設(shè)備上現(xiàn)代圖形處理設(shè)備的高級特性。在框架上實現(xiàn)了當(dāng)前最先進(jìn)的光照算法,實現(xiàn)了動態(tài)光源下皮膚的實時繪制方法和基于預(yù)計算的復(fù)雜環(huán)境光下皮膚實時繪制方法,從而完成了一個移動平臺復(fù)雜光照下人體皮膚實時繪制系統(tǒng)。
[Abstract]:When light propagates in nature, because of the physical law and the different optical properties such as different refractive index scattering rate, it will produce rich and colorful visual effects, such as shadow, surface highlight. Ambient light occlusion and translucent effects of some materials. In the field of realistic rendering. People use a variety of rendering algorithms to produce realistic images to provide users with a richer sensory experience. However, human skin as a special material, due to its complex physiological structure. The real propagation process of light on its surface and inside is very complicated, and it is difficult to simulate accurately by computer, which leads to the realistic rendering of skin has been a challenging task in the field of rendering in recent years. With the rapid development of hardware devices, a variety of different skin rendering algorithms are emerging on PC. And many algorithms have been widely used in the field of graphics rendering, such as games and movies. But with the growth of mobile devices blowout, the demand for high-quality mobile games and immersive virtual reality experience has increased significantly. However, due to the limited computing power of mobile platform, it is very difficult to real-time realistic skin rendering under complex illumination. This paper first designs a high-quality rendering framework for mobile platform. It can make full use of the advanced features of modern graphics processing devices on mobile devices and implement the most advanced illumination algorithm on the frame. The real-time rendering method of skin under dynamic light source and the real-time rendering method of skin under complex environment based on prediction are implemented, and a real-time rendering system of human skin under complex illumination on mobile platform is completed.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TP391.41

【參考文獻(xiàn)】

相關(guān)博士學(xué)位論文 前1條

1 任重;基于預(yù)計算的交互式全局光照明研究[D];浙江大學(xué);2007年

，

本文編號：1399942