本教程是由cmiVFX机构出品的Mistika高级键控技术训练视频教程，cmiVFX Mistika Advanced Channel Keying，时长：1小时54分，大小：1.4 GB，MP4高清视频格式，附工程源文件，教程使用软件：Mistika，作者：Chris Maynard，语言：英语。
Mistika 的前身叫：Jaleo，这个西班牙的软件目前仍然是最受好评的广告和电视剪辑软件。因为支持著名的5Dbox，所以它的特效功能也一点也不落伍。特别是JaleoHD版本，可以支持长片的多轨道高清实时剪辑和合成。所以北京和广州的很多作MTV、广告、电视剧、数字电影的后期公司仍然在使用它。在后期软件中间，Jaleo的剪辑和实时效率，仍然是剪辑师中口碑最好的！现在我们有了 新的软件名字叫Mistika。
Mistika作为一套后期高端实时全功能系统，能做到在所有剪辑、特效、调色及立体影像制作过程中采用4K非压缩全实时在线制作，即所谓的“所见即所得”，不使用代理画面通过显卡预监显示的调色。
“非压缩全实时在线制作”指的是在4K项目中必须实现对4K尺寸的DPX、Cineon等非压缩的标准电影格式文件（序列帧视频）的实时回放、剪辑、套底、调色、合成、特效、图像修复、字幕、3D立体电影、多格式输出等操作，而且在所有操作过程中视音频接口卡都通过HD-SDI接口（双链路Dual-Link）实时输出视音频信号（4K或2K）。Mistika一套真正全功能（One for All）的高端DI系统。
cmiVFX机构是国际领先的高端特效教程提供者，网站以特效和三维技术为主，教程内容翔实而深刻，是少有的以深度而闻名的网站。而且教程的发散角度非常新颖，常常是技术弄潮人首选的新锐技术接受渠道。相对而言，其教程的价格也较高，不过由于其丰富的内容和实战的经验，已经物超所值。
cmiVFX Mistika Advanced Channel Keying
For over 15 years, node-based compositing applications were the backbone of a film pipeline. These days, we rely on procedural-based software to create both visuals and audio effects in just about any creative industry. To better assist the art of color correction and keying, a method of channel extraction was created called “Maynard Keying” (Sometimes known as M-Key or Modular Key). This workflow relied on node-based software exclusively in order to achieve the goal of combining various channels into solid-object extractions which would work with semi-transparent areas. Many keyer tools have come a long way since the beginning. In some cases they can handle an entire key all by itself without needing to do any extra work. The problem that still exists is that not all shots have good lighting and reduced noise. Maynard Keying solves ANY SHOT you can throw at it because it allows you to build areas up and combine them with logic and math so you can combine excellent contours and semi-transparent areas. However, back just a few years ago, SGO was releasing Mistika without a node tree to work from which made a
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