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ReciprocityProject's Journal: An hour of my life I'll never get back :-/ 2

Journal by ReciprocityProject
I'm not going to tell you what this is supposed to do, or even what language it's written in.  See if you can find the line of code that doesn't belong with the others.  (hint: it's really, really lame)

#macro lerptounit( a, b, p )
    ((p-a)/(b-a))
#end

#macro bilerp( a, b, aprime, control, bprime, p )
  ((lerptounit( a, b, p ) * (control-aprime) + aprime) * (1-lerptounit( a, b, p )) +
  (lerptounit( a, b, p ) * (bprime-control) + control) * lerptounit( a, b, p ))
#end

#macro camera_position( p )
  (
  #if( p < 3 )
    x*bilerp( 0, 3, -100000, -2500, -1000, p )
  #else
  #if( p >= 3 & p < 6 )
    x*bilerp( 3, 6, -1000, 500, 2000, p ) +
    y*bilerp( 3, 6, 0, 0, 1000, p )
  #else
  #if( p >= 6 & p < 9 )
    x*bilerp( 6, 9, 2000, 3500, 3500, p ) +
    y*bilerp( 6, 9, 1000, 2000, 2000, p ) +
    z*bilerp( 6, 9, 0, 0, -2000, p )
  #else
  #if( p >= 9 & p < 12 )
    x*bilerp( 9, 12, 3500, 3500, 2500, p ) +
    y*bilerp( 9, 12, 2000, 2000, 1000, p ) +
    z*bilerp( 9, 12, -2000, -4000, -4000, p )
  #else
  #if( p >= 12 & p < 15 )
    x*bilerp( 12, 15, 2500, 1500, 750, p ) +
    y*bilerp( 12, 15, 1000, 0, 0, p ) +
    z*bilerp( 12, 15, -4000, -4000, -2000, p )
  #else
  #if( p >= 15 & p < 18 )
    x*bilerp( 15, 18, 750, 0, 0, p ) +
    z*bilerp( 18, 15, -2000, 0, 0, p )
  #else
  #if( p >= 18 & p < 21 )
    0
  #else
  #if( p >= 21 & p < 24 )
    y*bilerp( 21, 24, 0, 0, 10000, p ) +
    z*bilerp( 21, 24, 0, 0, 10000, p )
  #else
  #if( p >= 24 & p < 27 )
    x*bilerp( 24, 27, 0, 0, -10000, p ) +
    y*bilerp( 24, 27, 10000, 20000, 30000, p ) +
    z*bilerp( 24, 27, 10000, 20000, 30000, p )
  #else
  #if( p >= 27 )
    x*bilerp( 27, 30, -10000, -20000, -20000, p ) +
    y*bilerp( 27, 30, 30000, 40000, 40000, p ) +
    z*bilerp( 27, 30, 30000, 40000, 40000, p )
  #end #end #end #end #end #end #end #end #end #end
  )
#end

#macro camera_look_at( p )
  ( camera_position( p ) + camera_position( p + 6 ) - camera_position( p + 3 ) )
#end

#declare pmoo = 0;
#while( pmoo < 30 )
  sphere {
    camera_position( pmoo ) - y*30,
    15

    pigment{ rgb<1,0.4,0> }
    finish{ ambient 1 }
  }

  #declare pmoo = pmoo + 0.1;
#end
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An hour of my life I'll never get back :-/

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