Here's what I found today browsing the net
Its an interesting 3D studio setup made by Pawel Filip (check his DeviantArt gallery, top notch stuff)
I never saw this kind of light rig before, im speaking about the four pillars made of white material
Here's the final effect (click for fullsize)
Here's the light setup with all the settings (click for fullsize)
I will test a simmilar rig in Octane when mesh emmiters are here