How to make the screen blink?

I watched an episode where the screen blinks because the main character is waking up. (The top and bottom slowly closed into the center, then went back up) I think the author made it with overlays, but I’m not sure. Anyone know how to make this? Thanks :slight_smile:

Thy used 2 black overlays. One at the top and one at the bottom, and made them both shift up and down.

Or you can use transitions and it’s way easier (that’s how I do it)

@transition fade in black 0.5

And repeat as much as you need

Edit:
Actually I read your post again and yeah, it might not be what you were looking for… it still makes a good blinking effect though!

Well you can make a black screen overlay with a circle in it then do the transition in it