- [Narrator] When you see bad edges in a comp,…the usual suspect is the key.…But the problem may be the spill suppression,…which has put dark or off-colored edges…on the despilled plate, which ends up in the comp.…Here we'll look at techniques for dialing in…a favorable spill color that works with the comp,…not against it.…I'm gonna walk through this flow graph for you.…So let's push in here.…Starting at the top of course,…we have our original green screen.…Next is our obligatory Denoise.…
I'll clear that.…Following that is the despill operation.…Now, I'm using my Unspill node,…but you can use and despill operation you want.…The nice thing about the Unspill is…it allows you to dial in any spill color you want…and it produces the spill map in the alpha channel.…But doesn't matter, you can use any…spill operation you want.…The idea is, we take the original green screen…and subtract it from the despill plate to get the spill map.…
Next.…In this Shuffle node, we take the spill map,…which is in the green channel,…and we put it in all three channels.…
Note: This course was created by Steve Wright, author of the seminal book, Digital Compositing for Film and Video. We are proud to host this course in our library.
- Creating an uber key
- Keying green-screen vs. blue-screen footage
- Preprocessing footage
- Building a clean plate
- Making luma keys
- Keying on hue and saturation
- Pasting keys together
- Grain management
- Saving time with garbage mattes
- Using spill suppression
- Improving edges
- Color correcting keys
- Sweetening the comp
- Alternative compositing workflows
- Fixing edge problems
- Using KEYLIGHT, Primatte, Ultimatte, and other tools
Skill Level Intermediate
Compositing a Sci-Fi Force Field in NUKEwith Steve Wright2h 12m Intermediate
Compositing an Alien Portal in NUKEwith Steve Wright2h 20m Intermediate
1. Keying Workflows
2. Pre-Processing the Green Screen
3. Other Types of Keys
4. Building the Uber Key
5. Spill Suppression
6. Compositing Techniques
7. Color Correcting
How to match grade two clips4m 15s
8. Workflow Examples
9. Sweetening the Comp
10. Fixing Edge Problems
11. Special Keying Solutions
12. Appendix: Keyer Tutorials
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