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Turning something straight into a circle

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Zack Culver
Turning something straight into a circle
on Nov 27, 2017 at 1:21:41 am

I swear I have seen this done before...

I need to take an existing piece of footage that is "flat" and turn it in to a circle. Not mask it out into only showing a circle of the image. I need the end points of the horizon to loop around and touch each other. So that what is straight lines in the footage will become a circle. Is this possible?

Fuller context: I have a looping animation of an old-school 80s grid coming straight towards you. Its just generic stock I didn't make it from scratch in After Effects. I need to "twist" this footage around so that the flat horizon grid becomes a tunnel. I could not find a free stock loop of a grid tunnel. If I need to make a grid from scratch in AE to make it into a tunnel I have seen those tutorials... I guess I would just need to know what the effect would be called to circularize it. Its not "circle" that just creates a vector circle... and I didn;t find any sort of "array" effect like I would think of in other types of software. I just at least need a starting point.

TL:DR - how do 3D grid tunnel?


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Dave LaRonde
Re: Turning something straight into a circle
on Nov 27, 2017 at 2:37:05 am

If it HAS to wrap into a tunnel shape, read no further.

But it can already be a tunnel shape give CC Cylinder a look-see.

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


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Zack Culver
Re: Turning something straight into a circle
on Nov 27, 2017 at 3:23:07 am

Tried that didn't quite give me what I wanted. I did the CC Bend It to the animation and it wasn't REALLY what I wanted but it will work in a pinch I guess.


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Zack Culver
Re: Turning something straight into a circle
on Nov 27, 2017 at 3:16:53 pm

I thought maybe a picture reference would help...

So imagine this tunnel went back and down not to the right... I need that but animated, not necessarily that you're flying through / down it, but that it is "flowing" towards you .



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Kevin Camin
Re: Turning something straight into a circle
on Nov 28, 2017 at 5:36:49 am

I feel like this would be a dedicated 3D program solve. To me it sounds complicated even though the result looks "simple" and clean.

Best regards,

Kevin Camin


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Zack Culver
Re: Turning something straight into a circle
on Nov 28, 2017 at 4:37:42 pm

Yeah if I had 3DS Max or something I could just fart out a funnel and run a camera through it. I'm working with what I have...

The cylinder idea earlier may work. I didn't realize all the options at first that I could go inside the cylinder.


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Joseph W. Bourke
Re: Turning something straight into a circle
on Nov 28, 2017 at 7:33:09 pm

Zack -

It looks like Transformer might help you out. Look at the paths capability:

https://aescripts.com/transformer/

Joe Bourke
Owner/Creative Director
Bourke Media
http://www.bourkemedia.com


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