Join Mark Christiansen for an in-depth discussion in this video Know which Keylight controls to ignore, part of After Effects Compositing: 4 Color Keying.
As you've watched me work in Keylight you may have…noticed many controls in here that we're not touching.…I'd like to give you a breakdown of how they're organized,…what they basically do, and why,…having used all of them at one time or another,…I now recommend leaving most of them alone.…First of all, it's important for you to know…that everything above that Screen Matte twirldown…is actually integrated into the keying operation.…
So from Screen Colour through Screen Pre-Blur,…those are all controls that affect…pulling the actual key itself.…Everything below that, it's as if you were…applying a separate effect after the key.…So Screen Gain seems to be similar to Clip Black, but it…has the same unpleasant side effects that Final Result has…Namely, if I boost it up really high,…you're going to notice holes and grain in the footage,…and those happen to a lesser extent even…at a normal amount of application of that.…
So instead of Screen Gain,…I definitely suggest you just use Clip Black.…The Screen Balance control is set automatically…
Author
Released
12/7/2014Beginning 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
Duration
Views
Q: How do I locate the exercise files for chapter 5, 6, and 7 of this course?
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Introduction
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Welcome1m 46s
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Using the exercise files2m 23s
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1. Work with Keylight
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2. Manage Edges and Spill
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3. Divide a Matte for Best Results When Keying
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Add a holdout matte1m 38s
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4. Solve Problematic Edges
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5. Complex Color Keys and Primatte
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6. High-Contrast Mattes (When There Is No Green Screen)
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7. Prep for Success When Color Keying
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Prep a shot for keying3m 4s
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Video: Know which Keylight controls to ignore