What is the best croma green color peak or the number of the color or the smooth pleas it's essential ?
Answers: This really depends on the program you're using to key. Personally, I do adjectives my keying within FCP and After Effects, and I've found the KeyLight effect in After Effects to work the best, although I will across the world do a few different Keyers to get the final matte. Regardless of what you use, at hand is usually an option to calibrate the specific shade of green that it will knob out.
Go to the paint store and ask for as pure of a green as they can give you. Make sure it is a matte paint, not sparkly.
To get a solid knob, technique is just as vital as the equipment. The background should be evenly lit, and the lone real method to do this is to look at it through a waveform monitor. If you have to, a oil lamp meter or zebra bars will assistance you identify hot spots, but you're best off near a waveform monitor. Also keep within mind that the background wishes to be well lit, but not overexposed; I close to to keep it a stop or two down from the talent, this help cut down on any green bleed. This leads to the subsequent point, be sure to light the talent seperately from the green peak. Talk to your DP and VFX guys (assuming they are not you) and see if you can put a nice, hard border on the talent; this will help to switch them in post. Finally, brand sure the talent is far enough from the green blind so that there is no spill onto them.
You'll obligation chroma green. You can't get contained by average paint shop. They are at least 3 times more expensive later the regular paint. If you are really on a budget, get a green colour matte paint. Instead of purely selecting green eyeshade in your editing system, use RGB to acquire the mask.
Good lighting is also important for a flat green back ground. Make sure the distance between the purpose and background is far enuf to prevent any shadow.
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