高精度流體特效模擬研究探析

隨著影視攝影設備及顯示技術的發展，高解析度影片已成為主流，其帶來高擬真與高精細特效的衝擊，使得特效模擬於計算上的門檻也隨之大幅攀升。本論文以常用於製作電影與商業影片之3D 動畫、特效的流體模擬軟體RealFlow 進行探討。RealFlow 發展至今已開發出多款適用於各種情況下的流體模組與模擬方法，可呈現多元的流體視覺特效。然而，在使用上仍一直存有計算效率及難以選擇適用之模組等瓶頸。因此，論文中將針對使用上可能遭遇的問題，依照流體模擬的製作環節分為三個部分進行探討。第一部分將介紹RealFlow 所開發的模組以及其所對應的各種解算器，同時藉由案例運算實驗來分析不同模組與解算器之適用性與其優劣：第二部分，主要透過實作來說明網格引擎與算圖之運算效能；第三部分，則展示RealFlow 之平行模擬與結合超級電腦打造的算圖農場，所得之高精度流體特效出圖結果。期透過此研究，具體提供運用RealFlow 最新解算器、模組等演算流體特效之分析數據，以增進高精度畫面之製程效能，並從中探尋自主研發流體模擬之挑戰性課題。

關鍵字

3D 特效； RealFlow ； GPU 解算器；算圖；超級電腦

並列摘要

With the development of cameras for cinematographic and display devices, high resolution movie becomes popular, and brings about not only the demands of realistic simulation and high quality animation effect but also the complexity of computation. In this paper, we delved into the simulation software called RealFlow, which is the popular software to make fluid special effects of movies and commercial films. Up to the present, various simulation tools and technologies have been developed on RealFlow, and could be used to make many kinds of fluid effects in different situations. However, there are some problems in the simulations such as the efficiency of calculation and selection of incorrect tools. In our study, we divided these problems into three parts according to the procedures of fluid simulations: first, analyze the advantage and performance of the fluid tools and solvers; second, introduce the algorithms of mesh and rendering tools; third, show the results of parallel simulations with RealFlow and the final rendering results by supercomputers.

並列關鍵字

3D Effect ； RealFlow ； GPU Solver ； Rendering ； Supercomputer

國際替代計量

高精度流體特效模擬研究探析

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