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Drop Shadow Banding

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Ari Grunzeweig
Drop Shadow Banding
on Apr 11, 2017 at 11:06:20 pm

Hi,

See attached screenshot.

These are Element 3D layers with drop shadows applied as a separate effect.
Screenshot is from a Prores render, with a comp using 16bit and 4000 shadow map resolution.

Any ideas why this is happening or how to prevent?

Is it simply a grey on grey problem?

Thanks!



Thanks,
Ari


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Dave LaRonde
Re: Drop Shadow Banding
on Apr 11, 2017 at 11:19:49 pm

I doubt you see this in AE.
It's probably due to the media container & codec to which you exported. MP4/H.264 is notorious for this. In AE, you can an a tiny bit of noise on an adjustment layer. Really. It helps.

If there's no joy using it, I recommend a better codec. Plus working in 16 or 32 bits in AE. Not 8.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Brent Taylor
Re: Drop Shadow Banding
on Apr 12, 2017 at 9:09:49 pm

Dave: What codecs would you recommend using instead of MP4 or H.264 to avoid these types of problems?


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Richard Garabedain
Re: Drop Shadow Banding
on Apr 12, 2017 at 4:04:25 pm

ive had this problem before and it wasnt a codec problem...but i cannot remember quite how i fixed it..Maybe you could pre render with alpha png sequence and add the drop shadow to that?..do you have any adjustment layers or any other effects on the element layer..try turning them off one by one and see if it goes away.


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Ari Grunzeweig
Re: Drop Shadow Banding
on Apr 12, 2017 at 4:24:25 pm

Thanks for the suggestions. Noise helped a bit, but also added noise 😉
Has nothing to do with codec or other.

Strange problem, but not worth spending any more time on it for me...

Thanks ☺

Thanks,
Ari


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