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What I want:

img

What I achieved so far:

img

The tutorial I'm following:

https://youtu.be/dDXw28BHkv4?t=286

Where I'm stuck:

Adding the tangent node doesn't result in the spiral effect as shown in the Tutorial here

img

What I'd expect:

Adding the tangent node results in spiral effect

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1 Answer 1

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You can combine a radial effect and a wave effect:

enter image description here

The disk is Z up, its radius is along X and Y.

The generated coordinates are centered to -0.5 to 0.5.

The wave is to have a sinus going along the radius, from the center to the edge.

The radial effect is to have a cosinus depending on the angle around the disk.

enter image description here

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