Circular repetition with regularity and nodes help

Hello,

I would like from a vertical texture (this is an example but the texture is more complex than a simple gradient) to make a circular repeat.

So far so good. it works as I wish. The factor of the “math” node allows to adjust the quantity of circle.
but I want each circle to be the same in thickness as the others. Here, this is not the case.
the outer circle is thicker than the inner circle.
the goal is to simulate a “cote degeneve” like this example: https://helveticdeco.swiss/index/images/services/Côte-circulaires.jpg

do you have any ideas or advice for me?

Best regard,
BN

Try “Object” coordinate, not “UV”.

same problem :slight_smile:

I found the solution. I had to change the type of texture to “sperical”
sorry for inconvenience :slight_smile: