I have a question about editing graphics:
Basically, i've recently discovered about the term "tile merging" through VLDC 11 rules thread. With a bit of searching, i discovered this method is about overlapping 2 tiles, having both their graphics merged together into one single tile (such as having a Vine tile and a Dirt tile merged so i can use Vines inside Ledges without causing cutoff).
Now that the contest is over, i finally got around to learning about SMW Tools and stuff, including YY-CHR. Now i'm making a ExGFX file, and i need to merge a few tiles, but i noticed (and Leod's YY-CHR tutorial says this as well) that YY-CHR doesn't understand color 0 as transparency, and as such i can't copy one tile and place it on top of the other, as that will override the tile below.
So, in order to merge them, will i need to draw the second tile on top of the first pixel by pixel, or is there an easier way to do it that i don't know about?
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