I'm messing around a bit with the materials vmt files, trying to get a handle of what's going on. I compiled a small map and hammer gave me this errors:

Error loading studio model "models/props_foliage/Grass_tuft_001a.mdl"!
Error loading studio model "models/props_foliage/Grass_tuft_004d.mdl"!
etc.....

Well I can't find these models anywhere, so I can't tell Hammer where to look for them. Anyone know where they are? They are listed in the detail.vbsp file, which I thought was valid. There is also a tutorial somewhere on the net that has pictures of the grass models. Anybody have the link to that?

Cheers.

yep they sure dont work
thats all i can say to that
http://www.dod-federation.com/forum/showthread.php?t=330
sorry