ok, but using this method will generate a lot of unwanted mesh along the way, for example, how do you get rid of these tiny mesh as shown in the screenshot?
In the details panel of the light you're able to change the shape. You can extend the length/radius of a light to replicate the tube lights that are being used there For example:
Those lines? The texture in the middle is without any edge padding for an example, the texture around it is the texture as it actually is. I wouldn't release something with no edge padding.
No, that's the old Terrain method. The new Landscape method uses the Layer Blend node. Here's an example http://www.polycount.com/forum/showthread.php?p=1598641#post1598641
I've never seen (...or noticed, anyway) this sort of thing used on a character. Anyone have an example to demonstrate why one would use this? It's most interesting.