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Re: Gems .

Posted: Wed Sep 21, 2011 5:04 am
by buffalowingmedia
Thank You Very Much :)

Re: Gems .

Posted: Wed Sep 21, 2011 7:55 am
by sean1
Thanks !

Re: Gems .

Posted: Wed Sep 21, 2011 10:16 am
by mlody47
no problem :)

Re: Gems .

Posted: Thu Sep 22, 2011 4:29 am
by DayVids
Your guys primary issues are as a result of the "cuts" of the gems.

You need more cuts in the gems to reflect light more.

It's a bit exaggerated there but I have some less pronounced ones as well.

See here for one that's not quite as pronounced.

Re: Gems .

Posted: Thu Sep 22, 2011 7:53 am
by sean1
Image

Second render of Gems . Changed the IOR and used a HDRI with black and white, no post work .

Comments please :

Apologies ! ( new here ) . I should have put up in WIP , but I don't want to break thread now.

Re: Gems .

Posted: Thu Sep 22, 2011 12:03 pm
by mlody47
DayVids wrote:Your guys primary issues are as a result of the "cuts" of the gems.

You need more cuts in the gems to reflect light more.

It's a bit exaggerated there but I have some less pronounced ones as well.

See here for one that's not quite as pronounced.


ofcourse NOT ! Every gem is different .... it depends on what gem You are aiming for....


there are like 100 ways of cutting the Diamond... and its not only the one You have :)

Re: Gems .

Posted: Thu Sep 22, 2011 9:32 pm
by ROUBAL
The main problem I see is that your three gems have diamonds cuts. Each kind of gem has several kinds of cuts, and they are studied to give the best refractions inside the gem to allow the light come out of it after some internal reflections, according to the specific Indice Of Refraction of the gem.

I think that you will not see any esmerald with that kind of cut. Esmeralds generaly have less faces and a large table.

Result of a quick a google search :

http://www.google.fr/search?hl=fr&safe= ... a=N&tab=wi

Re: Gems .

Posted: Fri Sep 23, 2011 5:34 am
by DayVids
mlody47 wrote:ofcourse NOT ! Every gem is different .... it depends on what gem You are aiming for....


there are like 100 ways of cutting the Diamond... and its not only the one You have :)
WHHHHHAAAAAAAAAAAATT???? You mean I don't know everything :P

My apologies if I sounded like a pompous (ahem). I just assumed that since they were diamond cuts, they were intended to have a high degree of reflection and light bounces. You guys are indeed quite right, lots of diamonds have lots of different cuts and varried gemstones usually have a most common appearance.

I like the 2nd render Sean.

Re: Gems .

Posted: Fri Sep 23, 2011 6:08 pm
by mlody47
DayVids wrote:
mlody47 wrote:ofcourse NOT ! Every gem is different .... it depends on what gem You are aiming for....


there are like 100 ways of cutting the Diamond... and its not only the one You have :)
WHHHHHAAAAAAAAAAAATT???? You mean I don't know everything :P

My apologies if I sounded like a pompous (ahem). I just assumed that since they were diamond cuts, they were intended to have a high degree of reflection and light bounces. You guys are indeed quite right, lots of diamonds have lots of different cuts and varried gemstones usually have a most common appearance.

I like the 2nd render Sean.

hahaha ... Idont know everything either :) but I remember when I was researching Diamonds.... that they have similar patterns but not exactly the same :)