How to create a static/grainy animation effect?

Question

I don't know what to call this but this kind of grain/static (almost like an old TV) showed up when I created a low quality gif of an animation- see the sky and little particle bits emitting: https://dribbble.com/shots/5297810-Dystopian-game-preview-low-res

How would you create this in AfterEffects over a static image?

@Scott so the effect is called dithering? I want to apply it on purpose — UserDude, Commented Oct 16, 2018 at 23:08

Billy Kerr · Accepted Answer · 2018-10-17 16:18:24Z

1

Open an image, and click Image > Mode > Indexed Color

Set the dither to Diffusion, amount 100%

Afterwards, you can convert back to RGB colour mode. The effect will still remain.

answered Oct 17, 2018 at 16:18

Billy Kerr

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