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Fuzz on 3D rotate after using index-1 expression

New Here ,
Apr 27, 2021 Apr 27, 2021

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I'm creating an animation of a rotating diamond following this tutorial: https://www.youtube.com/watch?v=Rp5kvSCaeOU

 

I have the diamond as a component, and then used the index-1 expression on the Z Position. Duplicated the diamond to get the thickness and parented them to a null. When I rotate the null there is a weird feathery look when it rotates at a certain angle.  I have tried clearing cache and preview options. I'm at a loss, any assistance would be appreciated. 

 

Screen Shot 2021-04-28 at 3.28.56 pm.pngScreen Shot 2021-04-28 at 3.28.32 pm.png

In this After effects Tutorial I will show you how to make a 3d coin animation with logo in After Effects, no third party plug in required! ❤️ Don't forget t...
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Error or problem, Expressions, FAQ, Scripting

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Adobe Community Professional ,
Apr 27, 2021 Apr 27, 2021

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Nothing wrong here. It's how AE's old standard 3D renderer works. At certain angles you get undersampling where to many samples end up showing the wrong values. It's a precision issue and you can do nothing about it. If you need a more solid appearance, you have to use a genuine extrusion with the Cinema 4D renderer. Other than that it's usually not much of a problem, as motion blur and so on will disguise these artifacts further and of course you should only use fast and short moves with this fake technique, anyway.

 

Mylenium

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New Here ,
Apr 27, 2021 Apr 27, 2021

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When I have done this tutorial before using circles I did not run into this issue, whilst I am learning Cinema 4D and could achieve this. I was hoping to use AE as it worked well previously, and the solid vector look is what I am after. Thanks.

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