Depth of Field Enabled
Depth of Field Disabled
I've ditched the super-compositing technique I was thinking of before. After playing with it it seems like I'd end up using more time than if I relied more on 3DS max.
This is only a draft copy of my environment! There's more to come.
After seeing it without DOF, I think I'll stick to that. That's a relief! It saves time AND looks better. Now that's the kind of thing we're looking for.