Is it transparent crystal you want? I'd imagine something like this...

texture {
    pigment {
        rgbft <.4,.4,1,.8,.3>
    }
    finish {
        specular .5
        // roughness maybe... i dunno
        // maybe some sort of slight reflection
    }
    // maybe add some sort of normal for the appearance of cracks or
something
}
interior {
    ior 1.5 // or so
    media {
        scattering {
            1,
            <.8,.8,1> // multiply by a constant to make it denser or thinner
as necessary
        }
    }
}

I guess I'd start out with something like that, and then tweak it as
necessary. That's what "blue crystal" makes me think.

- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]

"Marc-Hendrik Bremer" <Mar### [at] t-onlinede> wrote in message
news:3bdc0f04@news.povray.org...
> Hi!
>
> After some time, I'm working on this scene - a fantasy laboratory of one
of
> my characters in a pbm-game. Ignore the missing background, missing AA and
> the jpeg-artefacts, please.
> What I can't get right are the crystal and the swords blade, which is
> supposed to be made out of such crystal. The material is described (by the
> gamemaster) as blue crystal and while I'm able to image how it should look
> like, I can't achieve the effect I want to. The swords blade is not that
far
> away - I used emitting media to get the blue touch. But this does not work
> for the raw crystal at the right, which is to dark whatever I try.
> Has anybody some "magic crystal"-material and is willing to share it with
> me?
>
> Comments are as always welcome!
>
> Marc-Hendrik
>
>

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