>> I have noticed that the IOR has been
>> moved inside of the interior statement,
>> but where has refraction gone to?

  Daniel, the refraction keyword is no longer necessary using POV-Ray v3.1.
Specifying the ior keyword along with an ior value in the interior statement
turns on refraction.

  I did not have example code from your scene to duplicate the background.
My own tests showed identical glass refraction (as far as I can tell) when
placing spheres over a checkered floor pattern. I did, however, move the
interior statement out of the #declare and 'attach' it to the sphere object
itself like so:

#declare Glass3 =
   texture {
      pigment {
         color rgbf <0.98, 0.98, 0.98, 0.9>
      }
      finish {
         ambient 0.1
         diffuse 0.1
         phong 1.0
         phong_size 100.0
         specular 0.8
         roughness 0.0003
         reflection 0.1
      }
   }

sphere {<0, 1, 0>, 1
   texture {Glass3}
   interior {ior 1.45} // specifying refraction keyword no longer necessary
}

  Try exporting your Moray scene to POV-Ray .pov and include files and edit
the text accordingly. Does it render correctly now?

- Alan
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"Art reaches its greatest peak when devoid of self-consciousness.
 Freedom discovers man the moment he loses concern over what
 impression he is making or about to make." - Bruce Lee (1947 - 1973)
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