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Subject: Eye Shader Test - need help please

Neyjour opened this issue on Aug 25, 2007 ยท 7 posts
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Neyjour ( ) posted Sat, 25 August 2007 at 10:15 PM ยท edited Wed, 29 July 2026 at 6:48 AM

file_386272.jpg

I'm trying to make an eye shader.  I'm pretty happy with the results so far, except that I'm loosing saturation and I can't figure out why.  Any ideas on how to fix this please?

"You don't know what we can see
Why don't you tell your dreams to me
Fantasy will set you free." - Steppenwolf

Neyjour ( ) posted Sat, 25 August 2007 at 10:16 PM

file_386273.jpg

Here are my shader settings.

"You don't know what we can see
Why don't you tell your dreams to me
Fantasy will set you free." - Steppenwolf

Neyjour ( ) posted Sun, 26 August 2007 at 4:51 AM

file_386284.jpg

Well, I finally managed to fix it...sort of.  Not as good as I was hoping, but I don't think I'm going to be able to get it much better. 

But now I'm finding I can't achieve a glossy/wet finish.  "Shininess" is all the way at 100%, so...???  I've been playing around with these settings for hours!  I'm starting to go cross-eyed.  LOL!  sigh

"You don't know what we can see
Why don't you tell your dreams to me
Fantasy will set you free." - Steppenwolf

Hoofdcommissaris ( ) posted Sun, 26 August 2007 at 5:10 AM

I think glossy/wet actually is 'reflection', and in case of something with a relatively smooth surface as an eye, rather clear reflections (as opposed to 'blurry'). Mind you, when you up the reflection, you might find a bit of a 'glowing' effect in the total shader. That is because the value of the color, transparancy and reflectivity can't surpass 100. So this could result in some more hours. You might end up having square eyes...

Neyjour ( ) posted Sun, 26 August 2007 at 1:24 PM

Hehe.  :P  Thanks very much!  I'll play with the reflections and see if that does the trick.  😄

"You don't know what we can see
Why don't you tell your dreams to me
Fantasy will set you free." - Steppenwolf

Miss Nancy ( ) posted Sun, 26 August 2007 at 2:34 PM

it also needs a complex environment with plenty of surfaces to appear in the reflection of the cornea.


dvlenk6 ( ) posted Sun, 26 August 2007 at 2:52 PM

Eyes have SSS qualities.
Eye specularities are anisotropic.
Eye reflections are fresnel.

Friends don't let friends use booleans.

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