Tiles: automatic junctions in Photoshop

I wanted to share this Photoshop action for creating automatically junction tiles.

Let’s assume that you have the following block of tiles:

These tiles allow to draw convex areas of every size:

However, if you want to draw concave areas, you need more 4 tiles:

Given the first block of tiles, the script creates the missing tiles:

Now you can use the new junction tiles to draw concave areas:

Download link

 Download make_junctions