Ok, let me tell you what I know about work GeVidal does there ! :)
Long, long time ago (lol), he started to play with terrains and lattices, that's what his work is based on, he is master of it, for sure !!! :)

And, how Rochr does his stuff, it's very well explained on his website tutorial, check it out, some of his models are imported from Cinema4D, dunno about this particular render, he usually states it under his gallery posts, Rohr ??? :)