You create a primitive box with one segment for each face (in max). You then select on face and bevel it, making the new inset face 50% of the length of the old face, with the height parameter set to zero, creating a boarder within the hold face. You then select the new, inner face that you just created, leaving the boarder outside unselected, and extrude it inwards. So now you have a box with a square, concave inset.
So what if you wanted to increase this object to 50,000 polies RIGHT THIS SECOND? Well you would apply shading groups and then use subdivision based on the shading groups. But now you have a square inset with this round membrane over the corners. How do you elminate this membrane without using 4 different shading groups, one for each segment of the 'boarder (or 2, if you're being stingy)?
Notice the torment and human suffering of this phenomenon in action:
Edited by fux0r666, 01 July 2005 - 05:25 PM.