I am making a lightsabre using media and it looks great until I get it in a
scene. Then it becomes transparent. Unless the background id dark, you can't
see it. I am using emitting and scattering in a multiple density media. I've
tested a lot of variations. Anyone know what I am missing? My media looks
like this...


cylinder { < 0.0, 1.0, 0.0 >, < 0.0,-1.0, 0.0 > 0.2

                pigment { rgbt 1.0 }

erior{ 
                          
                media { 
                        intervals 5
                        samples 12, 48 
                        emission  rgbt  1 
                        /// absorption rgbf < 0.0, 0.0, 5.0, 0.0 >
                        /// scattering { 1, rgb < 0.0, 0.0, 3.0 > }  
                   
     density { cylindrical 

                     color_map {
                                
                                [ 0.00 rgb < 0.0, 0.0, 0.0 > ]
                                [ 0.50 rgb < 0.0, 0.0, 0.5 > ]
                                [ 1.00 rgb < 0.0, 0.0, 3.0 > ]
                                
                               }                      
                                
                               scale < 0.2, 1.25, 0.2 > 
                               translate < 0.0, 0.0, 0.0 >  

              } /// end den 
                                 
     density { gradient y 

                     color_map {
                                
                                [ 0.00 rgb < 0.0, 0.0, 0.0 > ]
                                [ 0.20 rgb < 0.0, 0.0, 1.0 > ]
                                [ 1.00 rgb < 0.0, 0.0, 1.0 > ]
                                
                               }                      
                                
                               scale < 0.05, 2.0, 0.05 > 
                               translate < 0.0, 1.25, 0.0 >  

              } /// end den 
                           
            } ///end media     
          }///end sphere 
      

      hollow

    }///end

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