Hi all,
Here i tried to make some cubes from styrofoam…Something with the displacement is not proper…i can see my displacement only at the brightest sides…Maybe that is normal…Whatever… I wanted to share it 
It is still work in deep progress…
C u around!
All the best from me 
Looks to me like you only have bump mapping, and not any displacement.
Or very mild displacement combined with very low GI settings.
The first reason seams to be the mild displacement…0.02cm…
Thanx…I will keep u in the progress
C u around
I think a lot of the problem is lighting. Add a fill light to catch the right side of the cubes and the displacement should be more obvious. To me the problem is that your corners are too crisp for styrofoam.
It looks more like those acoustical ceiling tiles you see in most offices and schools. I like it!
Try this material
You could try this material in your scene
http://www.vray-materials.de/all\_materials.php?mat=1
I can’t vouch for it, I tried doing tests which didn’t go so well, I am now moved over to 1.5 and it can make a big difference with some of these older materials.
This site has some cool cool stuff - hope this helps.
10x man…I have tried yesterday a couple of things…
I think that i will make first the room…
It is a room for private drawing lessons, which man can still somewhere…
Here is one update…
Hey man, to make your styrofoam cubes more realistic, I would chamfer the edges a little.