He is doing the same thing, in effect, as you would do with 123D catch, but making standard maps of the processed obj.
Just download the demo file. I posted a link on the first page.
Ulco,
Yes it becomes repetitive. Just use the files (when more are available) in the immediate foreground and let TG do the rest.
And yes, he is creating files that you can get from crazy bump. But the files you get from crazy bump are dependent on the quality of the source, getting sources like he is using is not fast or easy. The detail he is capturing in the first place is what makes the end result so good... At least in other apps (as the example renders show)
On a side note. Crazy bump crashes on me when I lode any of his images into it. They open, but once the 3d preview starts it crashes.
...
The only real problem with the demo, is that its not as interesting as his example images. Hope he will release a few more soon. I really want to see if I can recreate his sand in TG! This one:
https://cdn1.artstation.com/p/assets/images/images/001/291/781/large/christoph-schindelar-testrender-01.jpg?1443926897