You can try NDO2. Quixel's old version of NDO. There's a new version which is part of the Quixel Suite (I use it now for texturing - it's brilliant) but the old NDO2, I believe, is available from them for free now.

Go here http://quixel.se/ndo and grab the NDO Legacy zip at the bottom of the page. 

Free trial, not free - it wants an activation code. Also, I had to jump through severe compatibility hoops (it wants directx from 2005 that wouldn't install in Windows 8) and then it just crashed anyway. Piece of ancient crap. Don't waste your time.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)