Post 5: Detour - Then Let’s Begin (But I have No Idea!)

If you have no idea for a map, here are a couple of options to generate a more random map…Just use a noise layer (set to smaller size, but keep the detail) This will five a variety of island shapes. Or use a gradient fill for the original shape definition layer. Or blurry geometric shapes (circles, arcs) Each of these will give different results. Here are 4 examples (from top left, clockwise: 50%grey, linear gradient at an angle, radial gradient, arc shape, blurred) all made following the TLS technique:
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And blended with the noise layer and a clip layer (lighten) applied:
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The selected, solid mask:
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And converted to an outline:
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You may now see some similarities in this technique to the “Creating Random Coastlines in GIMP” and “Creating Not-So Random Coastlines in GIMP” tutorials I had posted a while ago.