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數(shù)媒外文翻譯--虛擬現(xiàn)實(shí)技術(shù)的發(fā)展過(guò)程及研究現(xiàn)狀-免費(fèi)閱讀

  

【正文】 s Al dermason, is a desktop VR pioneer. The pany produced a series of mercial VR software package, are called Sup erscape. Sup erscape software package is mainly posed of a graphic editor, in front of the world series 中原工學(xué)院信息商務(wù) 學(xué)院畢業(yè)設(shè)計(jì)(論文)譯文專(zhuān)用紙 第 11頁(yè) Editor and visualization modules of three parts. Graphics editor used to create threedimensional objects, predefined pattern are placed on the world editor world coordinate system, visualization programs permit the user to move in the virtual world and interact with it, by space ball and mouse mands. Divi sion Ltd, founded in 1989, is located in Bristol. The pany in the development of Vision, ProVision and Supervi / sion system for modular high speed graphics engine, take the lead in using Transputer and i860 technology. The pany39。s to mid 8039。 目前 , 國(guó)內(nèi)從事海域整體模擬研究的還不多。 Division Ltd ,創(chuàng)建于 1989年 , 位于布里斯托爾。例如 , VR 系統(tǒng)開(kāi)發(fā)平臺(tái)、分布式 VR 技術(shù)等 , 這些都直接與計(jì)算機(jī)技術(shù)、多媒體技術(shù)的快速發(fā)展密切相關(guān)。北大西洋公約組織 (NATO)計(jì)劃把各個(gè)不同國(guó)家的兵力逐步“匯集入 SIMNET 而成為一個(gè)虛擬戰(zhàn)場(chǎng)” , 然后把空戰(zhàn)仿真系統(tǒng) AWSIMS (Air Warfare Simulation System ) 和海戰(zhàn)仿真 系統(tǒng) ( NWSIMS Naval Warfare Simulation System )與 SIMNET 相聯(lián)。要做到這一點(diǎn) , 可以從軟件與硬件兩方面來(lái)考慮 , 在硬件體系結(jié)構(gòu)方面 , DIVISO 公司在 SuperVision 系統(tǒng)中提出了一種基本的并行模型 , 開(kāi)發(fā)了相關(guān)的并行處理器件和 DVS 操作系統(tǒng) , 使虛擬現(xiàn)實(shí)得以全面發(fā)展。這三個(gè)重要特征用以區(qū)別相鄰近的技術(shù) , 如多媒體技術(shù)、計(jì)算機(jī)可視化技術(shù)沉浸特征 , 即在 VR 提供的虛擬世界中 , 使用戶(hù)能感覺(jué)到是真實(shí)的進(jìn)入了一個(gè)客觀世界 ; 交互特征 , 要求用戶(hù)能用人類(lèi)熟悉的方式對(duì)虛擬環(huán)境中的實(shí)體進(jìn)行觀察和操縱 ; 構(gòu)想特征 : 即“從定性和定量綜合集成環(huán)境中得到感性和理性的認(rèn)識(shí) : 從而化概念和萌發(fā)新意” 。與其他高新技術(shù)一樣 , 客觀需求是虛擬現(xiàn)實(shí)技術(shù)發(fā)展的動(dòng)力。 VR 以模擬方式為使用者創(chuàng)造一個(gè)實(shí)時(shí)反映實(shí)體對(duì)象變化與相互作用的三維圖像世界 , 在視、聽(tīng)、觸、嗅等感知行為的逼真體驗(yàn)中 , 使參與者可直接探索虛擬對(duì)象在所處環(huán)境中的作用和變化 ; 仿佛置身于虛擬的 現(xiàn)實(shí)世界中 , 產(chǎn)生沉浸感 (immersive)、想象 (imaginative 和實(shí)現(xiàn)交互性 interactive) 。在虛擬現(xiàn)實(shí)系統(tǒng)中只有各種交互設(shè)備還不夠 , 還必須提供基本的軟件支撐環(huán)境 , 用戶(hù)能方便地構(gòu)造虛擬環(huán)境并與虛擬環(huán)境進(jìn)行高級(jí)交互。 80 年代初 , 美國(guó)的 DARPA(Defensen Advanced Research Projects Agency) 為坦克編隊(duì)作戰(zhàn)訓(xùn)練開(kāi)發(fā)了一個(gè)實(shí)用的虛 SIMNET。 VR 應(yīng)用的關(guān)鍵是尋找合適的場(chǎng)合和對(duì)象 ,即如何發(fā)揮想象力和創(chuàng)造性。該公司生產(chǎn)了一系列的商業(yè) VR 軟件包 , 都命名為 Superscape。 對(duì)于海浪、海灘浪、碎浪等的模擬研究有些基礎(chǔ) , 國(guó)外學(xué)者如 Peachey D、Alain Fournier、 WilliamT1Reeeves 、 Beesel1F 、 Lebelond , Paul H1 都有較深入研究 ; 國(guó)內(nèi)浙江大學(xué) CADamp。 interactive features, requires that the user can use human familiar way, the entity in virtual environment observation and manipulation of concept。s to 80time metaphase, begin to form the basic concept of VR, started by the experiment into the practical stage, an important sign of which is that: in 1985 Michael Mc Greevy finished under the VIEW virtual reality system, equipped with a data glove and head tracker, provides gestures, language and other means of interaction, make VIEW be be worthy of the name of the virtual reality system, later to bee the development of virtual reality system structure of other panies such as VPL have been developed for the generation of virtual reality RB2 software and Data Glove data glove, for virtual reality provides development tools. The third stage, the late 8039。 Zhejiang University State Key Laboratory of National University of Defense Technology, Beihang University, Harbin Institute of Technology, also have different degrees of. These studies are related to the sea, but the emphasis on the wave of this specific phenomenon, and not the oceans as a whole to treat, but its theory and method can be Marine 3D landscape simulation system used by. 中原工學(xué)院信息商務(wù) 學(xué)院畢業(yè)設(shè)計(jì)(論文)譯文專(zhuān)用紙 第 12頁(yè) At present, domestic engaged in the whole area simulation study is not more than. Northwestern Polytechnical University College of marine engineering application of Visual C + + and Open GL in the highend PC virtual ocean environment, the system can be more realisti
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