HEllo group, and pov ray gurus i am currently stugggling at making a realistic
smoke, but whenever i' scale it up, smoke appears completely black and white and
let's no light throught it, i played with scaling options of emissions but my
objective it to provide some real transluscent smoke like in realist chimney
that pump quite low emissions that when we've seen in the 19 century industrial
chimenys !

here is the code that is not working when scaling thanhs to lowmuller pages !
when i cale it to about 150 all i get is completly black and white smoke that
not let light through... it now that emission directive shoud de scalled down
(divided by the bontainer scale, but no way)

sphere{ <0,0,0>, 1.5  // increased from 1 to 1.5, because of the turbulent
pattern !!!
        pigment { rgbt 1 }
        hollow

 interior{ //---------------------
    media{ method 3
//           emission 0.6
           scattering{ 1, // Type 1 = isotropic scattering, 2 = Mie haze, 3 =
Mie murky
                          // Type 4 = Rayleigh scattering,  5 =
Henyey-Greenstein scattering
                       <1,1,1>*3.00   // color of scattering haze
                       extinction  1.50  //  // 0 ~ 1 extinction
                       // how fast the scattering media absorbs light
                       // useful i.e. when the media absorbs too much light
                    // eccentricity i.e. -0.6 ~ +0.6 (if type>1 )
           } // end scattering

           density{ spherical // or: boxed
                    turbulence 0.85
                    color_map {
                    [0.00 rgb 0] // density at the border of the media
                    [0.05 rgb 0]
                    [0.20 rgb 0.2]
                    [0.30 rgb 0.6]
                    [0.40 rgb 1]
                    [1.00 rgb 1] // densitiy at the center of the media
                               } // end color_map
           } // end of density

           samples 1,1     // 3,3 for adaptive sampling
           intervals 3     //
           confidence 0.9  //
     } // end of media
----------------------------------------------------------------------
  } // ------------------ end of interior
 scale 1
 rotate<0,0,0>
 translate < -0.5, 1.50 + 0.20,0>
} //------------------ end of "Rauch"

please somebody help me i am stuck

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