Like I said, a rough skecth, I completely ignored axial tilt to make it
easier for me to see what was going on with the scene.

Josh

Jan Walzer wrote:

> What date is it in your scene ???
>
> You know that only two times in the year the night/day-line goes
> the way you showed ...
> Most time it is not orthogonal to your current view ...
> I think it would look quite nice, if you would make the
> night/day-line not that sharp and rotate it about 5-10 degrees
> around z...
>
> But of course, well done
>
> --
>
>  ,',    Jan Walzer      \V/  http://wa.lzer.net     ,',
> ',','   student of      >|<  mailto:jan### [at] lzernet ',','
>   '   ComputerScience   /A\  +49-177-7403863         '
>
> Josh English <eng### [at] spiritonecom> schrieb in im Newsbeitrag:
> 3A283113.D206431A@spiritone.com...
> > This is a quick example of how I would blend the two images for
> Earth,
> > but it needs a lot of tweaking, the maps dont' line up exactly
> and the
> > terminus of the shadow is too strict, right now there's too
> much
> > contrast.
> >
> > Here is the snippet of relevant code:
> > #declare day = texture {
> >   pigment {image_map {png "earth-land.png" map_type 1
> interpolate 2} }
> >   finish { diffuse 0.3 brilliance 0.1 ambient 0}
> >   rotate 90*y}
> >
> > #declare night = texture {
> >   pigment {image_map {tga "earthnight.tga" map_type 1
> interpolate 2} }
> >   finish { ambient 0.2 }
> >   rotate 90*y }
> >
> > sphere { 0.0, 1
> >          texture {radial
> >                   texture_map { [0.0 day ]
> >                                 [0.3 day ]
> >                                 [0.6 night ]
> >                                 [1.0 night ] }
> >                   rotate 0*y}
> >           }
> >
> > --
> > Josh English -- Lexiphanic Lethomaniac
> > eng### [at] spiritonecom
> > The POV-Ray Cyclopedia
> http://www.spiritone.com/~english/cyclopedia/
> >
> >
>
> -----------------------------------------------------------------
> ---------------

--
Josh English -- Lexiphanic Lethomaniac
eng### [at] spiritonecom
The POV-Ray Cyclopedia http://www.spiritone.com/~english/cyclopedia/

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