I saw how it is realized in the game drakensang. This is very nice. Developers Drakensang obviously not stupid. Why do you all do not want to use SpeedTree?
PS
//Xarthor Sorry men, I was mistaken
You seem a bit stupid though. I'll repeat it for you:
If you want to use SpeedTree in 3DGS you NEED TO WRITE YOUR _OWN_ WRAPPER FOR THE SPEEDTREE LIBRARIES ( = DLL FILES ). If you cannot, HIRE SOMEONE WHO CAN.