Concentric shading?

[Martin Aversa]

Hey there, I was trying to figure out a way to get this little circles patter in a concentric array instead of a linear one.

this is what I have, but i want to to be spread like the wave texture bellow:

@spikeyxxx maybe you have an idea? I saw your “Vector Math > Length and Math > Sine” suggestion but to be honest I can’t figure out what to do with them! I’ll study more, I promise 🙂 

Thanks for your time!

[Omar Domenech]

Get ready for some strange magic. The one called math.

[Martin Bergwerf]

Hi Martin,

It’s not as simple as my first thought and I know this is not exactly what you have in mind, but here’s an idea of the direction you might wanna go:

[Martin Bergwerf]

Basically, you can easily make concentric circles with the Length Node, but then you need points on each circle and the larger the circle (greater Length), the more points you need.

[Martin Bergwerf]

Now those ‘points I made in the above example are of course not squares, but trapeziums (trapezii?)…meaning, that we cannot easily turn them into circles…for that we will need a bit more math…

Like I said, it’s challenging and I will look into it tomorrow…it’s getting too late for me now…

[Martin Aversa]

Wow that is amazing! I am still figuring out what you did 🙂

I found this on a forum https://blender.stackexchange.com/questions/234725/how-do-i-procedurally-spread-a-number-of-circles-across-the-sides-of-a-bigger-on 

This person managed to spread circles across 1 ring, maybe something of this is useful to apply over our case 

[Martin Bergwerf]

Oh that’s very cool! I haven’t been able to do that!

I am trying to understand what exactly is happening, but maybe we can combine the two methods to get what we want (i’m not sure, but there is hope..)

[Martin Aversa]

I’ve been trying the whole morning. But I am not really sure what I am doing haha. There is hope!

[sheila5]

array modifier and boolean wasn’t all that either but that might be just me being stupid. I couldn’t get a perfect circle and somehow the inner circles were leaflike

[Martin Aversa]

array is a good idea, but I would like to know the way for doing it in the shader editor, more like a challenge now than for the application for my model hahah

[Martin Bergwerf]

@sheila5 ,

For modelling, I’d probably try Instancing, either the old way:

or doing it in Geometry Nodes.

[Martin Aversa]

I posted on another forum and someone came up with a solution, it is amazing! here is the link https://blender.stackexchange.com/questions/292633/shading-circles-array-along-concentric-circles/

@theluthier you might wanna take a look too, I remember you saying you were curious hehe

@spikeyxxx Episode IV is out: A new hope! 

[Martin Bergwerf]

That’s great Martin! I’ll look at it later…Haven’t gotten around to it myself, but that sounds like it’s solved!

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