The font pic is just to show that the function works with a texture laid out in a 16x8 grid with the characters arranged just so. Feel free to make any font you like conform to that standard, and it'll work just fine. :)
u/v coordinates are percentages, so you can make it any (power of 2) size you like, as well. That picture is shrunken from what I was actually using.
u/v coordinates are percentages, so you can make it any (power of 2) size you like, as well. That picture is shrunken from what I was actually using.