When I try to render this object Povray tells me it is infinite.  The
"bounded_by"
seems to have no effect on this object.   Why does Povray think this is
infinite?


#declare One =
difference {
   height_field {
      tga "MyPicture.tga"
      smooth
      hierarchy on
      translate <-0.5, -0.5, -0.5>
      rotate <-90,0,0>
      scale <0.3,1,0.1>
      photons {target reflection on}
   }
   box{<-0.2,-0.6,-0.02>,<0.2,0.6,2> pigment {rgbft <1,1,1,0,1>}
      no_shadow no_reflection no_image photons {collect off}
   }
    bounded_by { box{<-5,-5,-5>,<5,5,5>}}
}


object{One}

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