Intriguing halftone line pattern

[SebaKL]

Hi there guys 

I have been sweating trying to figure out how to achieve the effect you see on this rashguard. It looks like a halftone but I have the hardest time getting it to look even remotely similar.

I would appreciate, sincerely, any tips of direction, perhaps a tutorial on how to achieve such an effect?

With best regards
Sebastian

[Monika Gause]

It looks like lines that are getting thicker gradually (you could make a blend to get that) and then overlayed at an angle.

[SebaKL]

Hi there

I know it’s quite a bit to ask, but would it be possible for you to demonstrate the process, maybe with a simple before and after example?

I’ve been experimenting with blending shapes and lines in various ways, but the results still feel too organized, symmetrical, and rigid.  I suspect I may be overcomplicating things on my end while it might be much easier for someone more familiar.

The biggest part I’m struggling with is the "halftone" like transition. In the references , the bottom areas start as dense shapes almost like in halftone with very small openings, and as the gradient lightens, the spacing increases and orientation shifts to radial. When you zoom in, there are subtle deviations: some elements suddenly curve toward a center point, then rotate outward again. It’s organic.

If you have any insight into how to achieve that, I would really appreciate it. I’m trying to understand the logic behind those directional changes, not just replicate the effect.

Thank you in advance for any guidance you can share.