I'd like to ask you guys about grass meshes. In many games I see that grass made like planes with opacity map. In UDK I see something different, in wireframe grass looks like lines, but in render mode it's same as planes with opacity map.
So here is the question, how Epic's did this grass? How can I create new grass mesh, what I need to use, any tools?
Just "plane-grass" drops fps more than grass from basic udk library. Where is the trick?