翻訳と辞書 Words near each other ・ Plasma cell dyscrasia ・ Plasma cell gingivitis ・ Plasma cell granuloma ・ Plasma cell leukemia ・ Plasma channel ・ Plasma cleaning ・ Plasma contactor ・ Plasma containment ・ Plasma cosmology ・ Plasma cutting ・ Plasma deep drilling technology ・ Plasma diagnostics ・ Plasma diffusion ・ Plasma display ・ Plasma Economy ・ Plasma effect ・ Plasma electrochemistry ・ Plasma electrolytic oxidation ・ Plasma etcher ・ Plasma etching ・ Plasma frozen within 24 hours ・ Plasma fusion preface ・ Plasma gasification ・ Plasma gasification commercialization ・ Plasma globe ・ Plasma kallikrein ・ Plasma lamp ・ Plasma medicine ・ Plasma membrane Ca2+ ATPase ・ Plasma membrane monoamine transporter Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Plasma effect ： ウィキペディア英語版 Plasma effect The plasma effect is a computer-based visual effect animated in real-time. It uses cycles of changing colours warped in various ways to give an illusion of liquid, organic movement. Plasma was probably invented by demo coders for use in their demos where the effect was heavily used, especially in the early 1990s. The effect was particularly common on the Commodore Amiga where it could be implemented very efficiently by using the features of the proprietary display hardware. Plasma can also be implemented easily in software rendering by using sinus tables and pseudocolor palettes, and it has also been the first true demo effect for many beginning PC democoders. The fractal software Fractint also incorporates an algorithm known as "plasma", which, when combined with the color cycling feature of the software, can provide a result which resembles a typical plasma effect used in demos. The technical basis, however, is completely different, and a color cycling plasma is somewhat less dynamic than a demo plasma. == Synopsis == As there are many "hacked" approaches for implementing a plasma effect, this outline of an algorithm will just describe the theoretical basis for the effect. In order to achieve a sufficiently fast and good-looking real-time implementation (especially on the limited hardware available at the time this effect was at the height of its popularity in the 1990s), one would often do "non-correct" approximations to this algorithm. This, however, can often be done without noticeable visual differences. This algorithm is given in two dimensions, but could easily be adopted to any number of dimensions for any number of color channels. Let $f(x,\; y)$ be a multi-frequency noise function of two 2 variables (''e.g.'', a perlin noise function). Let each color component $c$ at the pixel $(x,\; y)$ be a linear function of the expression $\backslash sin(f(x,y)\; \backslash cdot\; \backslash omega\_c)$. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Plasma effect」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.