Applied tri-planar texturing based on the vertex world coordinate. This is done within the material and UE4 provides a function for it
http://i.imgur.com/SiMjDmdh.jpg
http://i.imgur.com/wfqKojph.jpg
http://i.imgur.com/zGAu4zUh.jpg
http://i.imgur.com/B0DDCkKh.jpg
http://i.imgur.com/cfP0LbPh.jpg
