Quote Originally Posted by RobA View Post
Post 3: Then Let's Begin (if I have an idea)

Create new layer called “Land Noise” and fill it with clouds (Filter->Render->Clouds->Solid Noise) Set the detail to the maximum (15) and the X and Y size to the max (16.0). The larger the size, the more randomness your final coast will have. Give it a new random seed and jot down the number (I put it in the layer name afterwards as a reminder). And change the blend mode to Overlay.
Post3-5.png
I have followed your tutorial, step by step but I fail to make the same thing like you describe.

The new layer "land noise" covering everything on the map, and the map disappear.

Help me to understand. It is maybe the cause of the age of this tutorial, or gimp has changed since 2007 ?