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KHing
01-25-2013, 02:42 AM
Hi everyone, I have an upcoming project that requires a nice multi coated lens shader, where it have a nice tint of color from a certain viewing angle.

Anyone have any tips regarding this shader? Any help is much appreciated! Thank you!

Reference:
http://www.retrocamera.net/wp-content/uploads/2009/02/asahi-super-multi-coated-takumar-55mm-angle.jpg

Ian31R
02-04-2013, 06:38 PM
Software? In Max you could use a multicolor ramp mapped to the viewing angle (normal), placed in the reflection and specular color of your glass material.

CHRiTTeR
02-04-2013, 09:31 PM
What renderer are you using?

I know maxwell can do thin coating like this

KHing
02-05-2013, 10:04 AM
I use maya with Mental Ray / Vray depends on which gives me a good result.

I was thinking along the line of adding ramps dependent on viewing angles in maya as well, but I am curious if there r shaders already built for this purpose? Or any physical shader that are built for this phenomena?

CHRiTTeR
02-05-2013, 12:06 PM
If you like iray, you can get a thin film coating material here:
http://forum.mentalimages.com/showthread.php?10493-iray-Material-for-3ds-Max&p=40449#post40449

I havent tried it, but from what i've seen results looks decent.

Ian31R
02-05-2013, 07:14 PM
There might not be any built in shaders in Maya for that purpose, (ones that aren't hidden anyway), but you can download some custom MR shaders - Check my last post here -
http://forums.cgsociety.org/showthread.php?f=6&t=1058082&page=2&pp=15

Ian31R
02-05-2013, 07:32 PM
Hmm, looks like the tektoshoot website has been down for a while...I haven't been able to find a link for it anywhere. I have the T2S Illumination shader, not sure if its okay to distribute it though.

Ian31R
02-05-2013, 08:27 PM
Also, you will probably need to model different lens elements to get multiple reflections and refractions. A good environment map will also be key to making the shader look good.

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