Perlin groves

[mogn]

The Black lines (the grooves) is a 20 m wide symmetric groove with the depth between 0 and 1
With zero slopes in the endpoints.

[Dune]

Always interesting. Thanks Mogn.

[fleetwood]

Thanks 




----- grooves flipped to rails for test

[bobbystahr]

something to study, thanks.

[mhaze]

Fascinating stuff

[mogn]

Thanks 




----- grooves flipped to rails for test

nice

[bobbystahr]

Thanks 




----- grooves flipped to rails for test

nice

agree...good experiment.

[Clay]

Pretty trippy!

[WAS]

This is pretty cool! I'm wondering if you can to the same thing using the Contour Shader set with some black and white to act as a map and mask.

[mogn]

Another (simpler, faster) implemention.
Multiply the output of the noise function (in this case multiply by 5 )
Subtract the floor (-5, -4,...,0, 1,2,3,4)
This creates 10 ranges 0..1
create a groove in the lower range and a constant 1 in the upper range.
A groove is created by step(1-step) squared and negated  in this case smooth step 0..0.5 is used