I tried it for fun, and here's what I get tweaked to Choke 20% and size 81 (other settings the same)
I understand that Gimp is similar to photoshop in a lot of ways, hopefully layer effects is one of them, and this translates across...
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Pimping my worldmap here. Still WIP... long way to go, but I'm pretty proud of what I've done so far...
And the steps I used here were-
- Select the map area (non-white)
- shrink the area
- create a new layer mask from the selection
- Filters>Artistic>Cubism on the mask to make a more chewed up edge
- Threshold the mask
(...up to this point)
- Create a new layer, filled with black set to burn mode
- Add a layer mask same as the map but inverted.
- Filter>Generic>Dialate the mask a number of times to increase the burn width
- Blur the mask
- play with the curves of the mask to get the look you want.
I also added a drop shadow.
My tutorials: Using GIMP to Create an Artistic Regional Map ~ All My Tutorials
My GIMP Scripts: Rotating Brush ~ Gradient from Image ~ Mosaic Tile Helper ~ Random Density Map ~ Subterranean Map Prettier ~ Tapered Stroke Path ~ Random Rotate Floating Layer ~ Batch Image to Pattern ~ Better Seamless Tiles ~ Tile Shuffle ~ Scale Pattern ~ Grid of Guides ~ Fractalize path ~ Label Points
My Maps: Finished Maps ~ Challenge Entries ~ My Portfolio: www.cartocopia.com
Thank you all for these comments! The help with the burnt edges is particularly helpful, and your comments about mountains led me to a really great mountain tutorial on the site here! This was so useful! Next time I make a map in this style, I think I'll feel a bit more confident in the mountains and edges. And next time I'll do a WIP thread like I'm supposed to!
Anyway, thanks again!