So I'm trying to find a solution for my new video editing project. In layer 1 (so the background) should be my original video which contains a background of a greenscreen alike texture. I figured out to get that out of the screen with composting and the most of it is transparent whereas the person in front is still visible (which should be layer 3). That is because there should be a second layer (layer 2) in the middle with some effects (only 2D effects like a PNG file - so pretty easy). So the person is still visible and the effects and if them are disabled you see the normal background.
So first question: Can I do that in 1 blender file? And if I can - how can I? If not: should I render the file of the composting blender file first and than put it on layer 3? And if so, should I render it as png or is there another way as a video file so I can just export that? And since it's not so easy to render in composting mode - how can I do that?
Thanks



