Perlin groves

Started by mogn, June 14, 2015, 07:07:48 am

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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

June 14, 2015, 10:45:16 am #2 Last Edit: June 14, 2015, 12:33:09 pm by fleetwood
Thanks  :D




----- grooves flipped to rails for test

bobbystahr

something to study, thanks.
something borrowed,
something Blue.
Ring out the Old.
Bring in the New
Bobby Stahr, Paracosmologist

mhaze


mogn


bobbystahr

something borrowed,
something Blue.
Ring out the Old.
Bring in the New
Bobby Stahr, Paracosmologist

Clay


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.
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mogn

July 05, 2015, 06:24:41 am #9 Last Edit: July 07, 2015, 04:07:24 am by 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