So, after heavy tweaking I came to this result with Boris’ key: I have even tried Red Giant’s supposedly Hollywood quality keyer and it gives me even worse results than Boris. Paradoxically, the standard Ultra Key gives me much better result from the start than the supposedly much more superior and flexible Boris’ Primatte Studio, which gives me MUCH more halo before the matte tweaks. For all of my keying I routinely use Premiere Pro’s Ultra Key which almost always gives a good result from the get go (in Agressive), but not in this case - see the pic: ). So, the problem is that not only the greenscreen stage is unevenly lit and has different color parts in it (especially the part where his legs are on the floor, see this pic: ), but all his body has a distinct “halo” or edge, which I can not properly eliminate. The 15 sec sample of original 4k greenscreen footage I am working with is available to download here: Dropbox - problematic greenscreen sample.mp4 - Simplify your lifeīackground I use for close up is here: Dropbox - problematic greenscreen sample bg.png - Simplify your lifeĮven though the video source is 4k, the final project is 1080p.

I have 4K footage shot on a not very good greenscreen stage and I’m supposed to use the lector in parts of the composite video as full figure in “master” shots and only his upper half in “close ups”, where the keying problems are much more obvious.

I prefer to do all my keying directly in Premiere Pro (Windows) but if this situation can only be fixed in After Effects I am all ears too, although the best would be to do it properly in Premiere. This is the first time I came to such a problematic greenscreen source that I can’t key it properly to my (and my client’s) satisfaction, so I hope that some real pro(s) out there will help me with this or tell me what I am doing wrong or what should I do to fix it.

Primatte after effects