7 min read
How to key hair against a green screen without rotoscoping it
The strands are not opaque or transparent. They are both at once, and most tools refuse to accept that.
ReadKeying guides
Fixes for green screen problems, written for people who already know what a matte is.
6 min read
How to get green spill off skin and hair
The screen does not stay behind your subject. It bounces, and by the time you key, it is in their skin.
Read6 min read
How to pull a matte from motion blur
A moving hand is half background for most of its width. Clip that to a hard edge and it reads as a cutout instantly.
Read7 min read
What to do when Ultra Key eats your edges
Everyone finds the same three sliders and the same trade: keep the hair and keep the green, or lose both.
Read6 min read
How to key green screen on a Mac without a Nuke licence
The best keyers live inside software that costs more than the Mac. The gap in the middle is real, and it can be closed.
Read6 min read
Why AI roto always looks cut out
The mask is not wrong, it is binary. The pixels that sell a composite are the ones a binary mask cannot represent.
Read6 min read
How to key glass against a green screen
The bottle is see-through, and what it lets you see is the screen. That is the whole problem in one sentence.
Read6 min read
How to get keyed footage with alpha into Resolve
The key was fine. The fringe came from the handoff, which is where alpha usually dies.
Read6 min read
How to key a badly lit green screen
The screen you got is not the screen you wanted. It has folds, a hot patch, and a corner that reads teal.
Read