An alternative use for the Dirt node
creating foliage for a wall..try it also with images of moss etc.
Please see attached..
to get this to work i buried the branch's geometry halfway into the wall, the dirt function then picked up the intersection of the wall line and the branch's
i also inverted it to pick up the edges of the wall and varied the strength , radius and details.
have fun !
CPU:-AMD 1055T 6 core, Motherboard:-Gigabyte 990FXA-UD3 AM3+, Gigabyte GTX 460-1GB, RAM:-8GB Kingston hyper X Genesis DDR3 1600Mhz D/Ch, Hard Disk:-500GB samsung F3 , OS:-Win7 64bit