## Perlin groves

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

#### mogn

##### June 14, 2015, 07:07:48 am
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

##### June 14, 2015, 08:25:05 am #1
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

----- grooves flipped to rails for test

#### bobbystahr

##### June 14, 2015, 12:11:03 pm #3
something to study, thanks.
something borrowed,
something Blue.
Ring out the Old.
Bring in the New
Bobby Stahr, Paracosmologist

#### mhaze

##### June 15, 2015, 03:44:56 am #4
Fascinating stuff

#### mogn

##### June 15, 2015, 04:17:15 am #5
Quote from: fleetwood on June 14, 2015, 10:45:16 am
Thanks

----- grooves flipped to rails for test

nice

#### bobbystahr

##### June 15, 2015, 11:58:58 am #6
Quote from: mogn on June 15, 2015, 04:17:15 am
Quote from: fleetwood on June 14, 2015, 10:45:16 am
Thanks

----- grooves flipped to rails for test

nice

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

Pretty trippy!

#### WAS

##### June 25, 2015, 11:44:41 pm #8
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.
Consider helping Richie Fight Rhabdomyosarcoma. Thank you so much ~WAS

#### 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