Can't remember the exact IOR right now,
but I think it's closer to glass anyway. Quartz
and diamond have IOR around 2.0



-- 
Steven Pigeon, Ph. D.
ste### [at] stevenpigeoncom
ste### [at] videotronca
"Xplo Eristotle" <xpl### [at] infomagicnet> wrote in message 
news:424630d0$1@news.povray.org...
> Steven Pigeon wrote:
>
>> I'm trying a trace with a lot more photons
>> I'll see what  it will look like.
>
> Lack of photons isn't the issue; the quartz is just too perfectly glassy. 
> It's not uncommon for it to have cloudy parts or other imperfections; 
> check out some photos (there are many online).
>
> Of course, changing that might be more work than you want to put in, 
> especially when I did identify it. ;p
>
> Also, is it using the IOR of quartz? (I don't remember the number offhand, 
> although I remember it being quite a bit higher than glass, and it 
> probably wouldn't make a big difference.. but it probably should use 
> quartz IOR, regardless.)
>
> -Xplo

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