Hi!

I've got an array of ships with engines at full throttle... when I render
the scene I've got this strange effect:

http://img278.imageshack.us/img278/3478/ships2nu.jpg

the ship at the top is ok! but the flames of the others ships looks
innaturals!

Why?

I use MegaPOV 1.21 with those render parameters:

-w800 -h450 +a0.3

global_settings {

    assumed_gamma 1 // tweak if the image is too pale
    max_trace_level 20

       radiosity {
            count 35 error_bound 1.8
            recursion_limit 1
            low_error_factor .5
            gray_threshold 0
            minimum_reuse 0.015
            brightness 1
            adc_bailout 0.01/2
            normal on
            media off
        }
 }

media {
  scattering {
       1, // isotropic
       rgb 0.02
  }
}

This is the flame:

#declare carFlame2=
union
{
    cone {
       <0,0,0>,0.5,<0,0,1>,0.3
       hollow
       pigment {rgbt <0,0,0,1>}
       interior {
          media
         { emission 4
           density
           { spherical density_map
             { [0 rgb 0]
               [0.4 rgb <1,0,0>]
               [0.8 rgb <1,0,0>]
               [1 rgb <1,0,0>]
             }
           }
         }
       }
    }


    cone {
       <0,0,0.4>,0.3,<0,0,1>,0.25
       hollow

       pigment {rgbt <0,0,0,1>}
       interior {
          media
         { emission 10
           density
           { spherical density_map
             { [0 rgb 0]
               [0.4 rgb <1,1,0.502>]
               [0.8 rgb <1,1,0.502>]
               [1 rgb <1,1,0.502>]
             }
           }
         }
       }
    }

    cylinder {
       <0,0,0.95><0,0,1>,0.2
       pigment {rgbf <1,1,1,0.1>}
       finish{ambient 1}

    }
    cylinder {
       <0,0,0.96><0,0,1>,0.21
        hollow
       pigment {rgb <0,0,0,>}


    }

}

Thanks!

Dox

Post a reply to this message