Quote from acomputerdog
That is an interesting idea. I would have to look at how snow placement is actually calculated, but it should be doable.
You might need to determine if the leaves (could do iron bars to if made into a ceiling) are inside or outside (covered by solid blocks). Then you could reduce placement by a % I got it to work on 1.4.7 with forge looking forward to a 1.5.1 forge version, not a lot of mods are 1.5.2 yet, so please keep a post 1.5.1 forge version when it's ready, even if it's not always the latest additions I'll be happy.