Non light reactive

[Earl]

I've been making a dungeon map that has curved corridors, in order to get the curve on the inner wall right I used 3D stonewall tiles (as opposed to the 2D 1 sided type). I've got to the stage where I start putting in lights but I discovered these wall are completely non reactive to a light source.

 

Is there a way I can make this look more natural?

 

I could go around turning them all to self lit.

 

Or I could replace then with a suitable 3D ground tile alternative.

 

Anything else?