Guides

Short answers about green screen, chroma key and transparent export. Every page opens with the answer.

Why is there still a green fringe on hair after chroma key? 2026-09-23
Why does an unevenly lit green screen ruin the edge? 2026-09-24
Which video format actually keeps transparency after keying? 2026-09-25
How big is a transparent video, and why does it take so long? 2026-09-26
Why is the chroma key green #00B140 and not just any green? 2026-09-26
When does AI subject keying beat a colour key — and when does it fail? 2026-09-26
How do you check a cutout before you ship it? 2026-09-26
Can a background remover really work with the internet off? 2026-09-26
Why do pixels at the edge end up half green and half foreground? 2026-09-26
What do you do when your key effect has no screen gain control? 2026-09-26
Why is blonde hair the worst case for a green screen? 2026-09-27
What has to be true before a background can be removed automatically? 2026-09-27
Why does a clean key still look fake once you drop in a new background? 2026-09-27
Why do blocky compression artifacts get masked out along with the background? 2026-09-27
When is a difference matte better than a chroma key? 2026-09-27
How far away should you stand from a green screen to kill your shadow? 2026-09-27
Can you key against a white wall lit green instead of a real green screen? 2026-09-27
When is hand masking better than a chroma key? 2026-09-27
Can you chroma key against any colour, not just green or blue? 2026-09-27
When is a blue screen the better choice than a green one? 2026-09-27
Does a matte choker actually remove a green fringe, or just hide it? 2026-09-28
Why does an alpha channel make the file so huge — and does keying green instead actually save space? 2026-09-29
Why is a transparent background coming out black — or white? 2026-09-29
Why does the export pull a background in even with transparency turned on? 2026-09-30
Why won't one key handle the whole green screen? 2026-10-01
Why do wrinkles ruin a chroma key faster than almost anything else? 2026-10-01
Why does a keyed GIF leave an "echo" around the subject? 2026-10-01
Does "no watermark" actually mean free on a green screen remover? 2026-10-01
Can you remove a background without ever using a green screen? 2026-10-01
Why does an evenly lit green screen still bounce green onto skin? 2026-10-01
Why does green spill turn brown instead of green on skin? 2026-10-01
Why is lighting a green screen harder than lighting a whiteboard? 2026-10-02
Does 10-bit 4:2:2 beat an expensive camera for green screen keying? 2026-10-03
Why is motion blur on a green screen almost impossible to key out? 2026-10-03
Why do automatic erasers fail on see-through objects? 2026-10-03
Why does a shiny subject mirror the whole green screen back at the camera? 2026-10-03
Why does keying only fix the part of your subject that's actually on the screen? 2026-10-03
Does a transparent PNG know what colour is behind it? 2026-10-03
Why does white still linger after you remove the background? 2026-10-03
Should you light the green screen to a flat 70 IRE before you light the subject? 2026-10-03
Why do batch product shots still need hand fixes after a green screen reshoot? 2026-10-03
Why does your camera give the subject a white border before you even key it? 2026-10-04
Can you key against something that isn't flat, like dyed water? 2026-10-05
Why does color range refuse to select your green screen past 50%? 2026-10-06
Why does noise show up the moment you put up a green screen? 2026-10-07
When should you shoot on black and luma key instead of a green screen? 2026-10-08
Why does the hair light need a magenta gel on a green screen shoot? 2026-10-09
Can you run a live presentation on a DIY green screen and record it at the same time? 2026-10-10
What are you supposed to do when you can't reshoot it on a green screen? 2026-10-11
Why do you end up polishing the part of the frame you're about to throw away? 2026-10-12
When is a plain backdrop better than a green screen you can't light properly? 2026-10-13
What happens when the green screen emits its own light onto your subject? 2026-10-14
Why does your subject look the wrong size once you drop in the new background? 2026-10-15
How do you key something semi-transparent without leaving the green stuck inside it? 2026-10-16