So I read the cliff tutorial, and some stuff by steam wiki, and I though I had it down. I made 2 intersecting walls, carved a tunnel, game them walls with no draw texture on the back and then selectem them all for displacement and everything was going fine. But then I noticed the nodraw backing was gone, and I get this happening on my cliffs. Now when I was using the paint geometry all the walls were selected to I thought it would connect them all, but I guess not. Any idea what I am doing wrong?