I created an R2D2 model (missing some details and with only very simple head rigging) in Blender to complete one missing element of my X-Wing project. The image was textured in Substance painter and a benchmark was rendered in iRay - so that I can bring the textures into Cycles shaders later on with the proper PBR set-up and tweak it towards this benchmarked result.
This is part of me testing how to best include Substance Painter into my Blender workflow and so far results have been very encouraging, although some obstacles around proper UV layouts, etc. still put me on a learning curve.
If you want to see the Cycles result (and its issues), please go here: http://blenderartists.org/forum/showthread.php?399515-R2D2-added-to-Yet-another-X-wing-fighter&p=3053664#post3053664
the image is not for gallery posting (do not want to spam the gallery ;-))
ok, now tested in Cycles, but not ready to upload - I seem to have made a mistake with my texture atlas sizes and the atlas pixel density for the body is inappropriately small making the height map paintings jump around. I might try fix it with an 8k export, but my take is that you have to be very careful with your UV layout if you combine into an atlas. But for the Xwing projects it will still work.