Alain <ele### [at] netscapenet> wrote:
> BuRnInG_IcE nous apporta ses lumieres en ce 31-01-2007 20:52:
> > I have this screen name on many different web site, and since I use POV-Ray,
> > I thought "Hey! I'll make an avater in POV-Ray!"
>
> > My ire is this: I can not find a good ice . . .
> > texture/interior/normal/what-have-you. I know the ice IOR, but it still
> > looks like glass, because it is so smooth. A texture doesn't help, nor do
> > normals. I can't understand exactly what to do. I was hoping someone might
> > know where source for good ice might be. Specifically, I'm looking for a
> > natural, sorta frosty, ripply looking ice, not a ice cube look. But right
> > now, I'm not picky. Any ice would work, and I could just fiddle with it.
>
> > P.S. I got the flame worked out. Just need ice.
> Natural ice often have air bubbles or other inclusions. Make them by using
> several small spheres with the ior of air (1) placed inside your ice. Add some
> opaque and dark bits "floating" inside. Differencing them can be very slow,
> beter use an union. Another way (not tested), wrap them in a merge and diference
> that from your block: may be faster for you then have only one bounding box.
> Layer some whitish, partly transparent, pattern over your ice texture. Give the
> white part a strong normal scaled small. granite may be a good start.
> Add some dispersion.
> If it's not the case now, try using an iso-surface. Carve some grooves in it by
> adding some bump function, unevenly scaled.
>
> --
> Alain
> -------------------------------------------------
> Don't try so hard, the best things come when you least expect them to.

Thank You. Using difference helps. Right now I have 2500 clear spheres of
size 0.015 randomly placed inside a size 1 sphere. O_o it's working, but a
little slow. . .

i'll try the normal/pattern idea once i get the interior set up.

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