I am really just guessing here but when we antialias, we are trying to
smooth edges and remove pixelation.  Normally this is done by taking a
desired pixel and the pixels that immediately surround it and then
averaging.

If a star is a single point (pixel) in space surrounded by blackness, then
if we antialias, we will average the single white point by many more black
points reducing the overall value (brightness) of the white point.

One possible (but untested) solution would be to not use "Starfield1" but
instead copy in the texture definition that the Starfield1 symbol represents
and then multiply each of the color values by some multiplying constant.

For example:

#declare My_Starfield1 =
texture {
    pigment {
        granite
        color_map {
            [ 0.000  0.270 color rgb < 0, 0, 0>*10 color rgb < 0, 0, 0>*10 ]
            [ 0.270  0.280 color rgb <.5,.5,.4>*10 color rgb <.8,.8,.4>*10 ]
            [ 0.280  0.470 color rgb < 0, 0, 0>*10 color rgb < 0, 0, 0>*10 ]
            [ 0.470  0.480 color rgb <.4,.4,.5>*10 color rgb <.4,.4,.8>*10 ]
            [ 0.480  0.680 color rgb < 0, 0, 0>*10 color rgb < 0, 0, 0>*10 ]
            [ 0.680  0.690 color rgb <.5,.4,.4>*10 color rgb <.8,.4,.4>*10 ]
            [ 0.690  0.880 color rgb < 0, 0, 0>*10 color rgb < 0, 0, 0>*10 ]
            [ 0.880  0.890 color rgb <.5,.5,.5>*10 color rgb < 1, 1, 1>*10 ]
            [ 0.890  1.000 color rgb < 0, 0, 0>*10 color rgb < 0, 0, 0>*10 ]
        }
    turbulence 1
    sine_wave
    scale .5
    }
    finish { diffuse 0 ambient 1 }
}

Again, not tested ... just a theory thought ...

Neil

"Barehunter" <nomail@nomail> wrote in message
news:web.41db32f66a5cceb5123f95160@news.povray.org...
> I did a picture using a sphere with starfield1. when I made the
antialiased
> version the stars disappeard and the sky was solid black. The non aliased
> pictures showed the stars just fine.What could have gone wrong? Thank you.
>
> I used this
> sphere{<0,0,0>,1000
>  hollow
>  texture{Starfield1}
>  }
>
>
>

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