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Green Screen advice
Hey guys –
I was wondering if anyone could help me out with a bit of green screen keying. I found a tutorial on tvgrafx.com for a spill suppressor that works really well:
https://www.tvgrafx.com/tutorials/tutorials/tips.html
but leaves my background white instead of alpha-ed out. What would be the next step (before or after this tutorial) to achieve that alpha? Should I use keylight 1.2 (and how from that stage) – or is there a simpler way?
Thanks so much in advance!
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3 Replies
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So I am assuming you are using AE. You have to set the spill suppressor to suppress alpha channels.
The best Plugin for GSC is a combination of a Chroma Keyer that offers a range, a Spill Suppressor, and a good Matte Choker along with a Matte Fixer.
there are a lot of programs that can help further, so let me know if this helps.
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The tutorial just shows putting a shift channels effect on the footage, moving the reds and blues to green, and then dropping in the same footage on top (composited to lighten – or maybe it was screen, not sure).
I didn’t see an option to “suppress alpha channels” – what would I have to do now that I’ve gotten the spill suppressor on there via the above mentioned method?
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Create a key of your footage and use it as a track matte for your suppressed footage. This page gives lots of useful info on keying.
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