10
THE KEYING EFFECTS
The term keying is used to describe the process of removing part of a layer to reveal the layers beneath it. This is usually used to refer to the removal of a blue or green screen background for compositing. In case you were curious, blue and green are the colors most often used because they contrast the most with the colors in skin tones, no matter how light or dark the skin. You would think that after all these years of having this workflow that you could now just click a button and everything blue or green would be gone. Unfortunately, that's not the case. Keying is a craft, sometimes requiring many tools to do the job. Thus, we have many effects in this category, all with the same intention of removing parts of a layer ...
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