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I have been struggling to create a bump that goes spiraling around a tube, sort of like a toilet paper tube.

Basically, it is a line that wraps around the tube several times, continuously.

I cannot figure out the math to make it happen.

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  • $\begingroup$ Please define you question further. Is the spiral answer what you asked for? Or do you want a spiraling bump map? $\endgroup$ – PHEDev Feb 12 '20 at 20:53
  • $\begingroup$ After i read the answer from @ᴊᴀᴄʜʏᴍ-ᴍɪᴄʜᴀʟ i realized that even my second idea did not fit the question, thus i deleted my answer, as I believe his answer should be on point. Good luck with your project. $\endgroup$ – Xylvier Feb 12 '20 at 21:34
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I've googled one BlenderArtists solution, that also works reasonably well for a tube.
All credits to PyBlend

You can use an Empty to control it.
Otherwise it uses object's origin point.

enter image description here

enter image description here

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ᴊᴀᴄʜʏᴍ ᴍɪᴄʜᴀʟ totally answered it. I have added three control values to make it a little more customizable for my needs. Here's my node group, based off of their excellent work!

enter image description here

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