Slime wrote:
 > I like it. It's cool the way the distortion of the pot goes along 
with the
 > lines on the wall. How did you do the wall?

If you mean the maze-like pattern, it's a plane with a special pigment:

#declare mazish=
  function{pigment{cells
   pigment_map{
    [.5 function{x} color_map{[.5 rgb 1][.5 rgb 0]}]
    [.5 function{y} color_map{[.5 rgb 1][.5 rgb 0]}]
   }
  }
}

plane{z,0
  pigment{function{mazish(x,y*(x+10)/8+x/8,z).grey}
    color_map{[.5 rgbf<1 1 1 .5>][.5 rgbf 1]}
  }
}

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