(05-13-2020, 01:39 PM)FredSchenk Wrote:(10-18-2019, 12:13 PM)Ofnuts Wrote: A quickie to add an outline around layer contents:
At the usual place.
Enjoy.
Would it be possible to do this non-destructive? By creating a new layer underneath (outside border) or above (inside border) the selected layer?
And would it also be possible to select the outline color and give it a feather effect?
(05-13-2020, 01:39 PM)FredSchenk Wrote:(10-18-2019, 12:13 PM)Ofnuts Wrote: A quickie to add an outline around layer contents:
At the usual place.
Enjoy.
Would it be possible to do this non-destructive? By creating a new layer underneath (outside border) or above (inside border) the selected layer?
And would it also be possible to select the outline color and give it a feather effect?
As a reference, a script which should do this, but gives an error on my system: https://pete.nu/software/gimp-outliner/
No, because you cannot do this properly with two layers, at least for the "inside" case. Consider a red layer to which you add a blue outline. The edge pixels of the initial layer are partially transparent red. If you want a blue "inside" outline, the edge pixels of the result will have to be partially transparent blue with no red component. If you want to keep the red layer, the edge pixels of the result will be purple (and a bit too opaque).
So such a solution would involve a third layer, above the initial layer and below the outline layer, whose sole purpose is to make the edge pixels of the initial layer completely transparent (Delete blend mode or else, but after figuring out how to line a line of fully opaque pixels pixels that covers exactly these edge pixels).