Making glow happen
The trick is the alpha layer of the border texture.
Important. The border texture must be 8-times wider than high.
16px height = 128px width
32px height = 256px width
Max-texture size sind 2048px.
So max-size is
256 x 2048px
When you call the backdrop function play a bit with the inset and the edgesize values but keep your tilesize at the size of your texture height.
Each border texure must consist 8 parts, those will be enough to create any edge- or side-texture needed.
Neat trick :)
I always was tempted to mess with the those types of background textures, but did not know about the "the border texture must be 8-times wider than high" rule. Now I do!
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