I guess that you get what you pay for. Reality had, since day one, a full manual that, in the last version, is at around 120 pages, complete of linked video tutorials and with a hyperlinked Table Of Content and index.

Apologies for the intrusion. All the best.

...so what does this say about Luxrender being free? That's a really low blow considering you've been profiting off the hard work of others who are giving away said work for free.