Concentric Hypnotic Circles

Development Rendering
1

Hello,

I’d like to create a material in UE4 with concentric rings that constantly shrink towards the centre. Just like in this video HERE.

I imagine I would use a sine wave for this maybe but I’m not sure how to begin.

Any ideas on technique for this goal would be much appreciated. Bonus if you know how to achieve the same effect in Niagra.

Cheers.

2

Here’s one of my material functions. Shouldn’t be too hard to alter it to make solid rings:

Function.JPG
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1 Like
3

Wow! Thanks so much.

Do you think you could share the values of each of those scalar inputs? I’m having a lot of trouble dialling them in.

Cheers.

4

@TheJamsh , Pretty please?

Also bumping in case anyone else has a method they’d like to share.

5

@TheJamsh One more bump for those values just in case you missed it.

6

I know it’s a bit of a necro. But since this still comes up first in google search when searching concentric circles panning. Thought I’d share a slightly simpler basic approach.
The multiply or lerp would be to mask of the edges. And ceil, abs, 1-x nodes are just variations. You’d still want to plug these into a multiply or lerp to mask the outer corners)
(You can also UV anim the TexCoords to the Spheremask with a noise texture for wobbly circles)

image
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