WIP_OpalRing by bobbystahr
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No AI - This artwork was created entirely by hand or with traditional digital tools.
Description
Well as promised here's my first real good opal ring,and with the return of lens flare...how could I resist....lol....comments please...this by the way is RichardJJ's texiob that he kindly sent me ...it,as near as i bin able to ascertain,is a very high quality Opal,and lemme tell ya i checked a lotta sites for the comparison.He's one accurate puppy that RJJ...if you read the IML you can stop reading now...this appeared on the list recently.
When building a gem like opal ,which is a composite(thanx bernard) in 2.1.7
you HAVE TO build 2 objects at least.For the opal i built the BlackAlaskan,as well for 3 objects,
that's used as a backing....basically very reflective black,.5 IU's up i
duplicated it but put an attribute contributed by RJJ(thanx very much)made
it slightly filtered and a light source 50 cast shadows 1R falloff,and the
cabouchon oval hemi i used Imagine's example attribute crystal because a
jeweller I know said that was the compostion of triplut opals.Now i can(on the dome)
use IOR here with filter distance set to 30(my default start point),and
instead of 2.00 for the crystal i used the IOR of opal which is
1.48
that's all fer now ...write soon and often...here,or prefferably on the IML cuz it's a faster load and read for me...lazy sot that i am....lol

Comments (4)
Gems... good idea bobby. I see that jewels seem more difficult to design than one could expect. 2 or 3 objects just for the stone ? and so much textures, is it not possible to make it simpler ? . But it's nice to see the lensflare.itx back in 2.1.7. I havn't had time to test it but it seems that the center of the lensflare should be brighter than the surrounding spikes, which is not the case here, maybe on purpose. That's the only thing I would dare to critic. Ah yes, could you submit different version of this jewel in different perpective angles and with different lights to see more of the inside of the stone itself. thanx. A complete serie of gem would be nice too, and also as a contest subject...
Very Nice- the modelling is superb. I agree with Richard, that it seems a bit complex, to do. But, you often find, that something simple, often requires a lot of effort, in Imagine. Oh- that's a point, what have you used as a Global Brushmap? Which is something which keeps coming up in the IML, the use of good environment maps, with reflective/refracting objects.
Thanx for your compliments guys,Re: the multiple objects...that is how,in "real life" opals are made into jewels...they're called tripluts...they are fused under pressure and great heat,which also makes them very breakable,hence their unlucky status(like a broken mirror,7 years bad luck,that old breaking superstition)no mystical hoodoo there i guess...s'all for geology 101 for now...lol..will post more later richard but am assembling a collection and that's a bit o modelling and rendering on my'slo-poke'300,so it'll be in a while.
Kevin...dunno...don't think i used globals...most likely a gold map applied as environment,and one of my chromes that i've collected or made on the subgroup of the silver or white gold,never figgered out what it was....all the colour in the dome is created by IOR as in a 'real' opal...don't know if you were aware of that.the dome is totally transparent.