I'm trying to create a scene which consists of one huge block which is seen from really close such that no edges are visible. The inner life of the block should consist of various tunnels carved into the block whith connections to the outside (like a futuristic town). The block should be transparent to some point such that its inner life is visible, however it should be still obvious that there is a wall.
For the block I used a glossy shader mixed with a diffuse one, then again mixed with a transparent shader. I added a plane as illumination from the side to get a reflection and an illumination gradient to highlight the wall but I'm not really happy with the result so far.