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get bad background with simple light on a solid background

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Bernard Muche
get bad background with simple light on a solid background
on Dec 27, 2019 at 1:21:38 pm

Hello,

I'm a very beginner in AE and I tried something very simple : put a light on a solid background to simulate a spotlight. It's ok but I got some "color stairs" which are not "smooth" (please forgive my English, that's not my language so I do my best) :


How can I create such a beautiful background but with pretty smooth color transitions ?

Thanks,

B.


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Greg Gesch
Re: get bad background with simple light on a solid background
on Dec 29, 2019 at 12:56:29 am

Hi Bernard, it's called "banding" and is a common problem. This tutorial might help:
https://www.bing.com/videos/search?q=after+effects+banding&view=detail&mid=...


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Mike Sevigny
Re: get bad background with simple light on a solid background
on Jan 2, 2020 at 5:48:37 am

Hey Bern,
As Greg mentioned, it's a common problem.

Try creating an adjustment layer and adding the Effect 'Add Noise'. Set it to a low number like 3% and it should smooth out your gradient. 'Add Noise' is a lot more cost effective than 'Add Grain'.

Mike


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Casey Drogin
Re: get bad background with simple light on a solid background
on Jan 2, 2020 at 5:42:42 pm

The smooth gradient background is displaying a common glitch called "banding." Essentially, your gradient is so smooth that After Effects is having trouble telling one grey pixel from another. Here's a quick breakdown that goes over why that happens and how to fix it: https://www.rocketstock.com/blog/removing-banding-in-after-effects/


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Richard Garabedain
Re: get bad background with simple light on a solid background
on Jan 2, 2020 at 5:59:41 pm

Just keep going with your project. it will go away once more stuff is on screen


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