Yeah, it was supposed to be on a new layer.
I'll post a tutorial with pictures in a few minutes.
Here we go:
First off, I made a large canvas, 600x600 px. My map isn't going to be this large.
I make a new layer, with the ellipse select tool with a fixed aspect ratio I choose how large I want my minimap to be. I fill the selection with black and call the layer "Guide"
I make a new layer and set it to screen. I take my map source and anchor it into my new layer. I set the layer back to normal and renamed it "Map". I right click my guide layer in the layers dialog and choose "Alpha to selection". I press Ctrl+I to invert the selection. I delete the selection from my map layer. My layers dialog now looks like this:
I make a new layer. I alpha to selection my guide layer again. On my new layer I choose Edit -> Stroke selection and stroke it by 4 px with a gold color. I name this layer "OutsideGold". I now have this:
I make a new layer and bring it below my OutsideGold layer. I alpha to selection on the outsidegold layer and grow the selection by 2 px. On my newly created layer I fill this selection with black. I remove the selection. I gaussian blur this layer by 10 px. I alpha to select and inverse on my guide again and remove the selection from my new layer. I name this layer "DropShadow".
New layer again, move this one below the dropshadow layer. Alpha to selection on guide layer, shrink selection by 3 px. On my new layer I stroke the selection by 4 px with yellow. I name this layer "InsideYel".
I make a new layer and move it below InsideYel. I follow the steps I used for my earlier drop shadow level, only this time I'm making the shadow for InsideYel and not OutsideGold. I name this "DropShad2".
I delete the white background layer at the bottom. I right click any of my layers in the layers dialog and choose "New from visible". Nothing changes on my canvas besides the white background disappearing, but my layers dialog now looks like this:
On the newly created visible layer I chose Alpha to selection and ctrl+c to copy the selection. I then went to edit -> Paste as -> new image.
I saved my original image as an xcf so I can make changes later. I saved the new image as a png, which you see here:
This post has been edited by Solartide: 05 May 2012 - 06:10 PM