I like the idea G. What I'm trying to figure out is how to make the wall bits seem to stand up higher than the floor bits...don't think a shadow or bevel would accomplish that. Well maybe, I dunno, but also maybe shade the wall bits lighter to make em seem to stand up more? Hrm, maybe a bumpmap run through the lighting effects filter (then set to overlay) or maybe render the basic shapes in Bryce (or something) then import the layer in and set it to overlay. Maybe some lighter shading where the rails are going to be (like in a mine). Lots of ideas to mess around with, not sure any of them would work. Anywho, keep working this one through, I'd like to see what happens.