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Message: <blockquote data-quote="Jürgen Hubert" data-source="post: 3435205" data-attributes="member: 7177">I've been trying to create a better shift between borders. Here is what I came up with.You start out with a line drawing of the borders between the different vegetation zones. (First Attachment).Now create a new layer and call it "Color". Go back to the line art drawing. You can select the different vegetation zones by using the Magic Wand  on the relevant part in the line art drawing and enlarging it by 1 px. I will use the lower areas for a desert zone, and the upper for a plains zone. Whenever I refer to "selecting" a certain zone, I am referring to this procedure.Select both of the zones in turn, go to the Color layer, and fill them with the primary color (I choose a "lighter", more yellowish tone for the plains so that it won't contrast with the desert areas as much. (Second Attachment)Go back to the Line Art layer and select the line by selecting the non-line layers with the "Select by Color" tool and inverting the selection. Grow the selection by 15 px. Go to the Color layer and apply a Gaussian blur of 15 px to it. (Third Attachment).Select the Plains layer and enlarge it by 15 px. Apply the Plasma filter to it as described above. But before you merge the layer with the Color Layer, apply Skript-Fu->Selection->Blend Borders with a border size of 15 px to it. (Fourth Attachment)Now repeat the same process with the desert layer, and you are done... (Fifth Attachment)This seems to work well enough, but it has some problems if your region borders the page border - as you can see here. I suppose you will have to first enlarge the picture and then make sure that your vegetation zones extends 15 px beyond the original size...</blockquote>

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