Alain <ele### [at] netscapenet> wrote:
> Dav_shef nous apporta ses lumieres en ce 18/10/2006 05:20:
> > Hi All,
>
> > I am trying to get a sphere with a radial colour gradient.
> > For example, a red sphere that gradually becomes white in its center.
> > Is there a way to do that ?
>
> > Cheers
>
> > Dav
>
>
> You can use the spherical pattern. It goes from a value of 1 at the origin and
> drop to zero at a radius of 1 then stay there.
> Use it with  color_map{[0 Red][1 White]} and scale that to your spgere radius.
> The onion proposed by Chris B is similar but repeats itself each unit radius.
> If your sphere is transparent, you can use the same pattern, but use it to
> madulate the density of a media filling the sphere. Don't forget to add hollow
> to your sphere so that it can actualy contain the media.
>

Yeah, but do I exactly use this spherical pattern ? can you give me a short
example ?

Cheers

Dav

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