Hi all ! Is there any way to create something like that proceduraly in Blender ?
I’ve been trying for several hours now but without success…
Thanks ! 
Note:
i got it to work now
had to change the mapping from point to texture
tried first nodes set up and not working yet
looks like color ramp has 3 values
one white and 2 black
can you upload sample file
thanks
happy bl
Voronoi procedural texture generates a bunch of randomized positions on the surface of the mesh and outputs distance from current pixel to the closest of such positions. You can use this distance output as factor for radial gradient. The problem is that Voronoi cannot generate intersecting circles; it will clip them away if the radius is too big. So you’ll need to stack up several Voronoi setups with different offsets
In the bottom picture, there are 4 Voronoi textures… but only 2 are being used.
Is that correct?
Thanks,
Cal
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It is, although if you use the extra two you get an even more complicated pattern. I just didn’t want to muddy the waters
So… would their outputs need to connect to ColorRamps and then 2 more Adders?
Again thanks.
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BTW, I missed completely that @joseph already suggested Voronoi. The non-randomized look on his screenshots confused me
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That should do it