Quote - This is a test using only a SunSky light, added it into the .lxs file by hand and deleted the other lights from the .lxo file. It's been rendering for 12 hours overnight and I'll leave it to render today while I'm at work.

Is the original rendered picture huge?

I've rendered the exact same Warehouse with an exact same edited "sun" light, and after 3 hours it was clean. But since I forgot to specify a size, it rendered at Posers default render size (490x500).