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How to handle green surpression through glass and fire?
I’ve got a semi-complicated key to pull, with the following bits…
- Glass
- Fire
- Fast motion
So…that’s exciting. 🙂
Here’s a photo of where I’m at:
First is the original footage. As you can see from the track marks, the 100 frames or so of this particular shot is all a fairly quick motion from the camera.
The second shot is the footage I’m putting on the green square (I haven’t added any motion blur to it yet), it also shows my garbage matte around the candle.
The third is as far as I’ve gotten with Keylight and gets at my ultimate question here.
How can I surpress the green in that last shot? All my attempts at cleaning up my key just result in complete transparency, which doesn’t look right because the glass isn’t actually completely transparent.
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3 Replies
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Keylight has a bunch of setting for colour correction.
Have you tried them all?
Eg. Edge colour correction -> colour balancing? -
I think Hue/Saturation will work for you to desaturate the green in your image if you are careful with the custom range value. The green in the shot has a lot of red in it (as I’m sure you’re well aware by now) which makes keying (be sure to adjust Screen Balance and Despill Bias!) and this sort of selective adjustment in a warm environment more difficult.
Darby Edelen
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This tutorial [link] may help.
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