Author Topic: Eye materials?  (Read 5658 times)

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Offline rintintin

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Eye materials?
« on: January 12, 2016, 07:23:00 am »
Hi,

I'm trying to create an eye material to test Keyshot for character work. Am I correct in saying that using opacity will always kill reflections, the only option is a cut-out type opacity?

I'm trying to replicate this image which uses opacity on the outer ball so that you can see the model of the eyeris below.

I rendered this eye in MODO( its not my eye model though, got it off of Gumroad )

Thanks,
Rob
« Last Edit: January 12, 2016, 07:25:10 am by rintintin »

Offline TpwUK

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Re: Eye materials?
« Reply #1 on: January 12, 2016, 10:22:02 am »
This is doable in KS, as long as the model has been separated properly before hand, I experimented with eyes a while back so I know it's achievable. I will dig around my archives and see what i can find if you don't figure it out before i catch up again.

Martin

Offline rintintin

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Re: Eye materials?
« Reply #2 on: January 12, 2016, 01:35:00 pm »
Hi,

I did mange to achieve what I was after but had to rework the model rather than use the assets as is. I would still be interested in looking at how you achieved this, particularly if transparency is as limited as it appears to my eyes :)

Thanks,
Rob

Offline TpwUK

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Re: Eye materials?
« Reply #3 on: January 12, 2016, 02:58:57 pm »
Hi,

I did mange to achieve what I was after but had to rework the model rather than use the assets as is. I would still be interested in looking at how you achieved this, particularly if transparency is as limited as it appears to my eyes :)

Thanks,
Rob

Your materials are much better than mine Rob, but here is the result I got. I had the following Objects ...

Sclera, Lens, Iris and Cornea - I should have SubD the Iris more but hey ho I was just problem hunting :)

Result shown is with KS 6.1 beta but it should be the same as for versions 4, 5 or 6

Martin

Offline rintintin

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Re: Eye materials?
« Reply #4 on: January 12, 2016, 03:11:50 pm »
thanks

appreciate the info, ill post my results tomorrow when I get back to work.

Offline rintintin

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Re: Eye materials?
« Reply #5 on: January 13, 2016, 02:38:43 am »
I think I rather like KeyShot. I need to do a bit more testing but its looking good.

Offline TpwUK

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Re: Eye materials?
« Reply #6 on: January 13, 2016, 03:55:34 am »
Awesome result Rob, send off for the 14 day watermark free version to do some full sized test renders... I had problems with UV mapping the white of the eye but you have it nailed there buddy !!

Martin

Offline Will Gibbons

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Re: Eye materials?
« Reply #7 on: January 13, 2016, 05:09:06 am »
These look awesome. Great materials there. Did you get those with the model from Gumroad?

Offline rintintin

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Re: Eye materials?
« Reply #8 on: January 13, 2016, 05:44:45 am »
Hi,
I got the model and textures but I had to change them  in order for it to work in KeyShot. It relies an alpha masks and they don't work ( at least I couldn't figure out how )plus the model is set up for the Arnold renderer.

The tutorial is "creating a realistic human eye"