Thomas de Groot <tho### [at] degrootorg> wrote:
>
> I am not yet sure about those 'media voids'... I shall have to think about that.

Yeah, I probably spoke too soon-- such voids would not produce the same visual
effect as your own method of creating voids with actual geometry.
>
> The only media used here
> is an absorbing media which takes care of it all (with the ior too of
> course). I experimented with the scattering media in addition to the
> absorbing one, because Jaime did something like that in his crystal
> experiments.
>
> http://www.ignorancia.org/index.php/galleries/latest-images/crystals-and-mushrooms/
>
> However, I did not find it to work as expected.
>

Also, it occurred to me that any fractures or cleavage planes in a crystal would
need to have some partial reflectivity (if I understand the concept of such
planes). Thin slices of interior media certainly cannot do that. :-(

BTW, thanks for the link to Jaime's crystals; I will take a look at his examples
and code.

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