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I am looking for a method to create a circular shape that has a sine wave as an edge. Like the picture I posted in addition to this question. I want the edge to be a sine wave and the rest of the surface to be warped.

enter image description here

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    $\begingroup$ Do you want the inner face be additionally subdivided and have a smooth gradient inward, or do you mean it exactly as @Chris depicted in his answer? $\endgroup$
    – quellenform
    Dec 22, 2022 at 19:19

3 Answers 3

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Here's a lazy version, that starts with a bottomless, 0-height cone:

enter image description here

.it gives you the option of an n-gon at the center:

enter image description here

.. if you wanted, you could raise or lower the center, too, for a more or less conical profile.

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    $\begingroup$ This one's just to get a G&T from quellenform, really.. I've learned a lot more from his version :) $\endgroup$
    – Robin Betts
    Dec 23, 2022 at 11:57
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    $\begingroup$ What's a "G&T"? You young people and your abbreviations... $\endgroup$
    – Kuboå
    Dec 23, 2022 at 12:32
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    $\begingroup$ It's a Gin and Tonic at the 19th hole for a rare win (IMHO) at a round of Node Golf.. :) $\endgroup$
    – Robin Betts
    Dec 23, 2022 at 12:54
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    $\begingroup$ I like that! Cheers! (...by the way, my first attempt was also with a cylinder, which has a better distribution of indices, but I personally did not like the innermost face) $\endgroup$
    – quellenform
    Dec 23, 2022 at 14:30
  • $\begingroup$ @quellenform... OK, that would be 'Inner Radius' 0. I think the cone merges automatically... :P ... But Hey, it's Christmas. My round at the bar. You're the pro :) $\endgroup$
    – Robin Betts
    Dec 23, 2022 at 14:37
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I assume that you need not only the outer edge, but also a nice topology inside the shape.

enter image description here

Maybe this example will help you:

enter image description here

As basis I use here a mesh, which I created from two curves with Curve to Mesh.

This has the advantage that I can divide it on two axes into as many segments as I want.

With a few math nodes I capture the points concentrically and radially and can move their positions accordingly.

So that the flow of the mesh remains adjustable also to the center, I use here additionally the node Float Curve.

The advantage of this solution is that it creates a mesh that is built up with quads, so you can additionally apply a subdivision.


(Blender 3.2+)

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  • $\begingroup$ Hey it's me again. Thank you very much for your suggestion. Is there a way to angle the outer edge towards the center? For example that the face discribing sine wave runns on the surface of a imaginary cone. $\endgroup$
    – Alec
    Dec 31, 2022 at 10:39
  • $\begingroup$ @Alec Sorry for the late reply. I'm afraid I don't understand exactly what you mean or how it should look. Can you please sketch it with an image? $\endgroup$
    – quellenform
    Jan 4, 2023 at 10:20
  • $\begingroup$ @Alec Was that an accident that you deselected the previously accepted answer? Would you have had a few more questions about it? $\endgroup$
    – quellenform
    Jan 11, 2023 at 20:22
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you can use this node setup here:

enter image description here

Note: i did not search for a formula for the integer value so that it "fits". I just tried out and 151 fitted ;)

result:

enter image description here

--- update

solution for z - axis:

enter image description here

enter image description here

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  • $\begingroup$ Very nice thank you. Can you help me realizing this pattern not in the x and y (radial) scale but in the z axis? $\endgroup$
    – Alec
    Dec 22, 2022 at 18:44
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    $\begingroup$ i updated my answer $\endgroup$
    – Chris
    Dec 22, 2022 at 18:52
  • $\begingroup$ Thank you very much. That helped alot. $\endgroup$
    – Alec
    Dec 22, 2022 at 19:04
  • $\begingroup$ pls click on the checkmark left of my answer, if it helped you. thx $\endgroup$
    – Chris
    Dec 22, 2022 at 19:13

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