Hi,

Got a bit of a problem here. POV-Ray crashes when rendering the following:

#version 3.7;

global_settings{
  mm_per_unit 3
  subsurface{samples 20, 2}
}

#declare HF =
  height_field{
   function 128, 128{
    pigment{
     granite
    }
   }
   smooth
   translate -(x+z)/2
   scale 2*<1,.1,1>
   translate y*.5
}

#declare Obj =
  intersection{
   object{HF}
   object{HF rotate x*90}
   object{HF rotate x*180}
   object{HF rotate x*270}
   object{HF rotate z*90}
   object{HF rotate z*270}
}
			
merge{
  #declare Seed = seed(1023);
  #for(V,0,10)
   object{
    Obj
    scale .5*pow(1-.4*rand(Seed),3)
    rotate 360*<rand(Seed),rand(Seed),rand(Seed)>
    translate .5*(1-2*<rand(Seed),rand(Seed),rand(Seed)>)
   }
  #end
  pigment{rgb 1}
  finish{
   reflection{0.1, 1.0 falloff 2} conserve_energy
   subsurface{translucency 1}
  }
}

I'm not convinced that it only occurs with height_fields, but it might 
be a clue as to why it's happening.

Version: 3.7.0.RC4.msvc 10-sse2.win32
Operating System: Windows XP SP 2
Processor(s): Intel Core 2 Quad Q6600 @ 2.40GHZ
RAM: 2.00GB

Sorry for posting this here, but Flyspray isn't accepting my passcode 
for some reason. I can provide a dump if absolutely necessary.

Sam

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