Join Mark Christiansen for an in-depth discussion in this video Key a green screen simply with Keylight, part of After Effects Compositing 04: Color Keying.
- Let's get started keying with Keylight.…Keylight is the award winning color keyer…from the Foundry that was licensed by Adobe…and is included with every copy of After Effects.…You've no doubt seen many thousands of shots…in movies and television that were created…with the help of Keylight including a few…that I myself created using the tool set…and work flow I'll show you in this course.…In this lesson, I'll give a basic overview…of the essential steps to get a good initial…result with Keylight before we break…each of them down and take them to completion.…
So before you even get started, it's important…to note that you should always be working…in full resolution when you're evaluating a key.…Now here you can see that my resolution…is actually at half, but it's set to auto.…So in fact, if I were to zoom in, to look at detail,…with the auto setting it's going to go to full…as soon as I go to 100 percent or beyond.…That's fine, you can also just…change it to full if you want.…
For the most part, you're going…to be working on a single frame…
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.
- 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
Skill Level Intermediate
Q: How do I locate the exercise files for chapter 5, 6, and 7 of this course?
<div>A: The exercise files are found in the After Effects project that matches the one seen in the movie (named along the top bar of the After Effects interface). Two caveats apply:</div><div> </div><div>1) The latest version of After Effects (CC) shows the full path, including the project name, whereas when the class was recorded only the project filename itself was displayed by default.</div><div> </div><div>2) Source files <strong>do</strong> need to be relinked. </div><div> </div><div>Each project contains individual compositions whose names match those shown in the movies, and whose state, when opened, should match the state of the comp at the start of the movie, as well.</div><div> </div>
After Effects Apprentice 12: Tracking and Keyingwith Chris Meyer3h 54m Intermediate
VFX Techniques: Crowd Replication with After Effectswith Lee Lanier2h 54m Intermediate
VFX Techniques: Tracking Objects onto a Facewith Lee Lanier2h 42m Intermediate
1. Work with Keylight
2. Manage Edges and Spill
3. Divide a Matte for Best Results When Keying
Add a holdout matte1m 38s
4. Solve Problematic Edges
5. Complex Color Keys and Primatte
6. High-Contrast Mattes (When There Is No Green Screen)
7. Prep for Success When Color Keying
Prep a shot for keying3m 4s
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