This is a funny thing. We all know that AA takes time. But sooo much?

The scene below renders <1 Second here, without AA.
If i turn on AA 0.3, it renders ... forever ... ~1 hr.

/////////////////////////////////////////////
//
//     ~~ [ Diblob ] ~~
//        version 1 out of 1
//
//  by Michael Scharrer
//  https://mscharrer.net
//
// CC-BY-4.0 license
// https://creativecommons.org/licenses/by/4.0/
//
/////////////////////////////////////////////

#version 3.6;

global_settings { max_trace_level 12} //should be 12

camera{
 right x*image_width/image_height
 location <0,-5,0>
 look_at <0,0,0>
}

light_source{
 <0,-10,0>
 color 1
}


union{
 blob{
  sphere{
   <-1,0,0> 1.5 2
   pigment{
    checker
    rgb 0
    rgb .2
    scale 0.25
   }
   finish{
    reflection <1,1,1.1>
   }
  }
  sphere{
   <1,0,0> 1.5 2
   pigment{
    checker
    rgb 0
    rgb .2
    scale 0.25
   }
   finish{
    reflection <1.1,1,1>
   }
  }
 }
 scale 1.5
}
/*union{
 blob{
  sphere{ <-1,2,0> 1.5 2 }
  sphere{ < 1,2,0> 1.5 2 }
 }
 sphere{
 pigment{ color <1,1,1> }
 finish{ reflection 1 }
 normal{
  bumps 2
 }
}*/


sphere{
 <0,0,0>
 30
 hollow
 pigment{
  color <1,1,1,1>
 }
 finish{
  reflection <.6,.62,.6>
 }
 normal{
  bumps 0.005
 }
}

sphere{
 <0,0,0>
 100
 hollow
 pigment{
  color <0,0,0,0,0.01>
 }
 finish{
  reflection 1
 }
 normal{
  bumps 0.0001
 }
}

plane{
 y 200
 pigment{
  granite
  color_map{
   [0 rgb 0]
   [1 rgb 4]
  }
  scale 50
  turbulence 0.2
 }
 finish{
  ambient 1
  diffuse 0
 }
}

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