What does Adjust Coastline do ?

Started by Alf15000, October 28, 2012, 03:49:11 pm

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Alf15000

October 28, 2012, 03:49:11 pm Last Edit: October 28, 2012, 05:15:42 pm by Alf15000
Hi all,

I'm testing Power Fractal Shader V3 and after few pictures, I can't guess how Adjust Coastline works ? Can someone give me advice (Simple node network to test, for example...)

Thanks a lot for your answers :-)


jo

Hi,

This is described in the documentation for the node. Click the "?" button in the top right of the node parameter view to go to the docs.

Regards,

Jo

Henry Blewer

I use it for flattening areas between the higher altitudes. This works great for making plains or isolating mesa formations, for example.
http://flickr.com/photos/njeneb/
Forget Tuesday; It's just Monday spelled with a T

Alf15000

Thank you :-)

I had already read the description in the official documentation, but I think this parameter doesn't work properly in my test scene. Maybe because of a heightfield utilisation... I'll try with full procedural terrain

This is a screen capture of my node network and PF shader's parameters. My heightfield has an altitude of 100 m. Nothing's wrong in  that node network ?

[attach=1]

Henry Blewer

It's working correctly. The difficult part is getting the coastline smoothing to look right. You can control this better with a Distribution shader, image map shader, another power fractal...

Keep working on it. This is one of the more difficult parts of the power fractal to learn. It takes patience to get it to look the way you intended. Don't forget about the merge shader. The merge shader can help alot; it offers a lot of control options.
http://flickr.com/photos/njeneb/
Forget Tuesday; It's just Monday spelled with a T

Alf15000

Thank you very much for your advice... I will continue my tests with this incomprehensible parameter ;-) As you say : it is not so easy to learn !

Dune

You can also do this:

Henry Blewer

It is not incomprehensible. It takes a little use to get how it works. I wish I could say, 'Do this...' but it depends too much on the look you are trying to get. Much of Terragen 2 is like this. The more you use it, the more you have a feel for how to get things to look right.
http://flickr.com/photos/njeneb/
Forget Tuesday; It's just Monday spelled with a T

Alf15000

Thank you Dune, but I try to understand how Adjust Coastline works ;-)

Njeneb : I'm not trying to get a special look, just trying to understand...
-> "The more you use it..." : That's right, I use every Power Fractal's parameter again and again. I create animated GIFs with my tests for a better view of all of this parameters !

Henry Blewer

That is a good way to see what happens. I did the same thing with the Heightfield erosion operator.
http://flickr.com/photos/njeneb/
Forget Tuesday; It's just Monday spelled with a T