Thin film OSL shader

[vlado]

Hello,

Someone asked for a thin film shader and I wrote one in OSL based on some code I found here:
http://www.gamedev.net/page/resource...graphics-r2962

Attached is the shader and some sample scene.



Best regards,
Vlado

[Mokiki]

Thanks Vlado! I'm sure this will come in handy someday

[Dariusz Makowski (Dadal)]

What can we use it for?

[vlado]

I hate to use this as a reference, but here are some examples:
http://blog.maxwellrender.com/tips/p...-of-materials/

Best regards,
Vlado

[Dariusz Makowski (Dadal)]

Hehehe thank you :- )

[Bigguns]

Hehe thank'S Vlado good stuff again

[Art48]

How would I use it? VRayBlendMtl? Just on top with <100% Opacity?

Edit: Nevermind, missed that there is a link with an example scene.

[vlado]

How would I use it? VRayBlendMtl? Just on top with <100% Opacity?

In my example, I just put it as the reflection color in a VRayMtl material with Fresnel off. Using it as blend mask is also possible, though it could get a bit complicated if you want to do bump mapping just for that layer.

Best regards,
Vlado

[viscorbel]

Very useful little shader Thanks Vlado!

[3LP]

Niiiiiicee!

Stan

[Macker]

Could this be incorporated into the standard VRay Material (maybe under an "advanced" tab)? It's a superb addition.

Also, I assume that to keep realistic you would use realistic wavelengths - 380 to 750 nm?

[vlado]

It could be added to the VRayMtl for sure, but I've been accused that the UI is incredibly cluttered already. Will think about it anyways.

For the wavelengths yes, they need to be more or less realistic.

Best regards,
Vlado

[Art48]

Cluttered UI in the VRayMaterial? Oh, come on, I mean maybe there is much stuff to do but this is professional software. People shouldn't be afraid when they see some buttons... Jeez...

I'd rather see a cluttered UI than holding back useful features. You shoul dpropably tidy up the UI in 3.2 or even 4.0 with a total overhaul, if required. But until then I see no point in holding back stuff because of cluttering...

[Macker]

It could be added to the VRayMtl for sure, but I've been accused that the UI is incredibly cluttered already. Will think about it anyways.

For the wavelengths yes, they need to be more or less realistic.

Best regards,
Vlado

I think the best way to tackle this is the same approach you took with the settings. Have all the basics on show by default, but have an advanced check box that displays additional settings that let "power users" tweak what they need to. I appreciate VRay is used by everyone from absolute amateurs through to VFX pro's and that catering to everybody's needs is very difficult but it seems a bit backwards to withhold updated elements of the software to cater for the few that it might scare.

[vlado]

I think the best way to tackle this is the same approach you took with the settings. Have all the basics on show by default, but have an advanced check box that displays additional settings that let "power users" tweak what they need to. I appreciate VRay is used by everyone from absolute amateurs through to VFX pro's and that catering to everybody's needs is very difficult but it seems a bit backwards to withhold updated elements of the software to cater for the few that it might scare.

Well I'm not withholding it, there's still a way to get what you want obviously Like I said, will think about it. You are right that if we hide some of the existing params in an advanced view, there will be space for new stuff.

Best regards,
Vlado