Margus Ramst wrote:

> Heh, and I was whining about my 486DX4 120 and 16MB ;)
>
> But about your question: as far as I see, varying ior is no longer
> possible
> in 3.1. However, if U really need this, I saw a tutorial (_not_  a
> patch)
> about adding dispersion to POV (I assume this is what U mean by
> rainbow-refraction). It is at Daren Scot Wilson's page:
> http://www.newcolor.com/darenw/DarenHome.html
> Haven't tried this myself and U need to hack the source to do it, but
> judging from the images it gives nice results.
>
> Hope this helps...
>
> Margus

Thanks, but I can't do this, since I haven't got a C-compiler.
And even if I had, I don't think I would do it, because I'm not very
good at programming and I don't like doing something while I don't know
what exactly I'm doing.
If I make a mistake, and it doesn't work, I spend more time searching
where the bug is than it's worth. (At least that's the way it goes often
when I try to program something in QB).

But I got an answer on the question: it's impossible to do with POV-Ray
as it is now.  Too bad.
Maybe color-dependant-refraction (or dispersion (nice word BTW; I didn't
know it had a name!) is a good thing to add on a future version (or a
patch).

ZK

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