After Effects Compositing 4 Color Keying
MP4 | Video: 720p | Duration: 2:07:52 | English | Subtitles: VTT | 2292.0 MB
Color keying, also known as chroma keying, lets you shoot a foreground scene and insert it into virtually any background; this can save you money and allow you to create shots that are impossible or highly dangerous to take as a single shot. For it to be effective, the key is in the details. In this course, Mark Christiansen shows how to produce feature-film-quality keys in After Effects that fit well within their new scenes, while retaining the subtle details—be they strands of hair or soft or translucent edges—that make the results believable.
Beginning with a brief explanation of the keying process, Mark takes you through the steps involved in creating a perfect green-screen key: generating a rough matte, eliminating color spill and matte lines, and refining problematic edges. He shows how to work with Keylight and Primatte—two indispensable keying tools in After Effects—and explains when to use one over the other. And for times when green screen won't work, he shows how to generate high-contrast mattes, or luma keys, based on the luminance data in your footage. Last, learn about compression and how to prep a shot for keying.
Topics include:
What is color keying?
Using garbage mattes
Getting started with Keylight
Understanding the Screen Color, Clip Black, and Clip White adjustments
Eliminating spill with Advanced Spill Suppressor
Using Key Cleaner to refine edges automatically
Dividing a matte with holdout mattes
Breaking down a complex color key
Creating a luma key with Extract
Setting up sky replacement
Using Refine Soft Matte to improve edge detail
Feathering edges with Channel Blur
Knowing when to avoid green screen
Prepping a shot for keying
效果合成后: 4 色键控
MP4 |视频: 720p |持续时间: 2:07:52 |英语 |字幕: VTT |2292.0 MB
颜色键控, 也称为色度键控, 让你拍摄前景场景, 并插入到几乎任何背景;这可以节省你的钱, 让你创造的投篮是不可能的, 或高度危险的, 作为一个单一的拍摄。为了有效, 关键在于细节。在本课程中, Mark Christiansen 展示了如何在新的场景中很好地制作出功能性的电影质量键, 同时保留细微的细节--它们是头发或柔软或半透明的边缘--使结果可信。
从对键控过程的简要说明开始, Mark 将带您完成创建一个完美的绿色屏幕键所涉及的步骤: 生成粗糙的遮罩, 消除颜色溢出和哑光线, 以及细化有问题的边缘。他展示了如何与 Keylight 和 Primatte-两个不可缺少的键控工具在之后的效果-并解释何时使用另一个。在绿色屏幕不起作用的时候, 他会根据你的镜头中的亮度数据来显示如何生成高对比度的罩或 luma 键。最后, 了解压缩和如何准备一张键控。
主题包括:
什么是颜色键控？
使用垃圾罩
Keylight 入门
了解屏幕颜色、剪辑黑色和剪辑白调整
利用先进的溢流抑制器消除溢流
使用密钥清理器自动调整边缘
将遮罩与墨层罩
分解复杂的颜色键
用提取物创建 luma 键
设置天空替换
使用细化软遮罩提高边缘细节
带通道模糊的羽化边缘
了解何时避免绿色屏幕
准备一杆键控