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Old May 10th, 2012, 07:35 AM   #1
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AE and PS Gaussian Blur not smooth

So I'm building a AE composition for an opening, and I want a round blob in my background, so I create a circle object, and I apply Gaussian blur to it, and make it take up most of the frame.

I am noticing that the blur is not smooth, there's banding, the gradient is clearly layered, straiated... not smooth.

Any idea how I can deal with this?

Last edited by Ed Mohar; May 10th, 2012 at 08:39 AM. Reason: added description
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Old May 10th, 2012, 07:37 AM   #2
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Re: AE and PS Gaussian Blur not smooth

Check to make sure you have your display settings as Full Resolution (small drop down list to the right of the preview monitor window).
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Old May 10th, 2012, 08:39 AM   #3
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Re: AE and PS Gaussian Blur not smooth

Yea, I checked. The blending is visible on export

I did find a fix though:
How to Remove Banding Artifacts in After Effects - Greyscalegorilla

By adding a solid, and a Ramp effect, and upping the scatter property, it can basically add noise to help remove the problem.

He describes several tactics with dealing with it.

I am wondering though, I want a oval... how do I create that with a solid? Perhaps pre-compose it, and then stretch the new composition a little?
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Old May 10th, 2012, 09:09 AM   #4
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Re: AE and PS Gaussian Blur not smooth

Perhaps also switching to 16-bit or 32-bit might help. Look for the switch at the bottom of the project panel. You have to alt-click it.
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