Hello one and all,
Pipes here, Texture / Environment Artist working within the gaming industry for over 5 years.
I have had a lot of questions while researching and using Physical Based Rendering set ups and I thought I would answer these questions in one, rather long tutorial. I am now using Allegorithmics suite of texturing tools as my main tool set so this tutorial also discusses tiling texture creation using Zbrush, Knald and Substance Designer .
The tutorial is over an hour but I hope you find the information useful and helps demystify the PBR workflow.