@ric.pce
I'm looking to shoot RAW video to improve my green screen scene quality. Do you have any other suggestions than shooting RAW?
Yes, shoot h.264. Light everything good. Light Subject and Screen with different sets of lights. The subject should not wear green or colors with green in them. Keep the subject away from the screen. Keep shadows off of the screen. Post...I use After Effects and Premiere for keying. If you dont use AE then these tips may not be useful. In post crank up the green. Effect: SelectiveColor. Set Colors dropdown to Green, set Cyan, Yellow and Black values to 100% Set magenta to -100%. The green should begin to "pop". You can duplicate the Selective Color Effect...CTRL+D. Now you have two Selective Color effects. The green should be very green. Move onto Keylight Effect. Eye dropper the green close to the subjects face or hair. Go into the color panel and pull the green down and to the left. You should see improvement with that action, more green being removed. Switch view to Screen Matte. Now you have to dig into the settings.Screen Gain...go easy, make small tweaks, you will probably increase this value by 10-20 points. Screen balance somewhere between 40 and 60.
Screen Matte settings. Clip Black and Clip white...make small changes to these settings. Generally you will want to shrink the matte 1-3. Go easy on softness and Despot Black and White settings. Clip rollback can be slightly increased. While you make these adjustments flip back and forth between Screen Matte view and Final Result view. You may have some green fringe on the subject. Describing the removal of fringe is not easy. Precomposing, Mattes, secondary color correction, multiple layers are all in the mix possibly. To finish I link the project back to PP and use mattes and secondary color correction to get the best look possible. Many of the tips I provided coincide with this tutorial from 8bitdigitaltv.
I don't use the matte method described at the end of this tut but it is a good workflow and might help you reach your goal of better final results with your green screen work.
Here I show original footage look and work in progress look of project I am working on.
https://drive.google.com/file/d/0B-4Lg-sjsw0eVEJIWGNzQkQtYW8/view?usp=sharingYou can shoot h.264 and get great chromakey. You need a workflow that works and I hope you find one that works for you.
Peace and Cheers,
Kihlbahkt