At the risk of being "poo-poo'd", here's the list (as I understand it). Taken directly from Dark Basic Pro's Help File:
Quote: "
0 - draw first no alpha
1 - draw first with alpha masking
2 and 3 - draw second which overlaps solid geometry
4 - draw second alpha test (only render beyond 0x000000CF alpha values)
5 - water line object (seperates depth sort automatically)
6 - combination of 3 and 4 (second phase render with alpha blend AND alpha test, used for fading LOD leaves)
"
What they mean exactly is beyond me, however, I personally use 0, 1 and 4 (now that I found this... lol)
JTK