Join Mark Christiansen for an in-depth discussion in this video Use only these two views in Keylight, part of After Effects Compositing: 4 Color Keying.
- Keylight has a number of options under the view menu…that you don't really need…and one in particular that you must actively avoid.…Here's the lowdown on why you generally only see me work…in either status or intermediate result view.…Let's actually start with the view that you must avoid.…So here in the intermediate result…I have my initial key.…And if I play it back…just take note of how the foreground figure works.…
Now there's some noise going on in the background…and that is actually an area…where there's some translucency in the frame…so the noise you're seeing there is actually just the result…of those being semi-opaque pixels…because they're a weird color.…However if I switch to final result…you're going to see the same graininess on his shirt.…Check this out.…So all of a sudden his shirt which is gray…is intensely grainy.…This happens very constantly…with final result view…and for this reason alone…I would discourage you from using it.…
Not to mention the fact…that the main benefit of final result…is color correction…
Author
Mark Christiansen
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 50s
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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: Use only these two views in Keylight