If you're dealing with Wang tiles,
you'll find this index map generator very useful.
If not, you really don't need this at all :)
Index map (red and green are axis indices, 0..255)
Index size is 128 x 128,
PROCESSING, WAIT... tiles,
2 different edges
"Can you imagine how life could be improved if we could do away with
jealousy, greed, hate ..."
"It can also be improved by eliminating love, tenderness, sentiment --
the other side of the coin" -- Dr. Roger Corby and Kirk, "What are Little Girls Made Of?",