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Posted: Fri Jun 20, 2008 4:58 am
by cpfresh
Wyt calc'd a diamonds IOR and cauchy_b in this thread: ... 9994#39994
Indigo Material Values:


I just calculated those from some sellmeier's I found for CVD Diamond; a 'manufactured' diamond...probably not quite the same as jeweler type diamond but shouldn't be too far off. This diamond would have a quoted IoR of 2.41 notice how the Cauchy A is somewhat lower than that.

Posted: Fri Jun 20, 2008 5:42 am
by zsouthboy
Good to know, thanks cpfresh! That means this one is quite a bit more dispersive than the real deal. All well.

Here's an update of the render (hope you don't mind tobak):)

Posted: Fri Jun 20, 2008 6:43 am
by afecelis
wow! :shock: :shock:

beautiful diamonds Zsouthboy!

Posted: Fri Jun 20, 2008 8:11 am
by zsouthboy
No credit to me!

it's all tobak's work :)

Here's an update after 4 hours:

Posted: Fri Jun 20, 2008 8:16 am
by Kram1032
are there some intersections, where the diamonds get black? Looks good but seems to be a bit wrong...

@tobak (as it's your scene^^) - I'd like to see a more focused light so that one can see the caustics of the ring on the floor :)

Posted: Fri Jun 20, 2008 8:47 am
by zsouthboy
Yep, and I moved the floor up a TEENSY bit too much so the very bottom of the main diamond is black.

Posted: Sat Jun 21, 2008 3:26 am
by zsouthboy
And here's the overnight finished render.

Posted: Sat Jun 21, 2008 3:30 am
by suvakas
And again I have to use the word - sexy 8)

Posted: Sat Jun 21, 2008 3:35 am
by Borgleader
I'll take but one, but, in red ;) Just jkin, nice work.

Posted: Tue Jun 24, 2008 11:43 pm
by tobak30
Fantastic render there. I love it.

Its my girlfriends dream ring. She basically designed it and wanted to see how it looked like in real. Thanks a lot zsouthboy.

Posted: Wed Jun 25, 2008 1:10 am
by zsouthboy
Glad to help.

Posted: Thu Jun 26, 2008 4:09 am
by Deus
I have a broken life. If i upload it can you fix it zsouthboy? :)

Also suvakas Its not very "male" to call diamond rings sexy ;)

Posted: Thu Jun 26, 2008 6:20 am
by CTZn
Lol for the typo (hopefully). One guy sold his own recently, right ? The quick fix ;)

/OT mood

Posted: Fri Jun 27, 2008 2:45 am
by tobak30
I don't find the aperture width in the igs file. I am running the indigo 1.0.9 for linux 64 bit.

Posted: Fri Jun 27, 2008 3:09 am
by zsouthboy
It's inside the <camera> element, you can't miss it.