How to record a video with different background without having a green screen? I'm wondering if there is a way to change the video background while recording with a different background , It doesn't have to be chosen by me , Just a different background .

Is that's possible?
If it's a static shot, you can try using a difference matte. It doesn't work as well as a chroma key, but it might do the trick. The idea is you'll set up After Effects to key out everythi