Thin film OSL shader

[Morbid Angel]

Instead of adding this to the VrayMtl (if folks are worried about clutter), how about having this as a new VrayTexture that ships with Vray?

I second that!

[Art48]

I third it. Although I'd rather see it inside the VRayMtl itself. F*** clutter. This is professional software where you just have to know what buttons to push and what checkboxes to set to achieve your goal. If you want a very beginner-friendly version just make a VRay-Lite or something similar.

[sharktacos]

Art48,
What would be the advantage of having it in the VrayMtl? Personally I would rather see a clearcoat / secondary reflection section added to the VrayMtl, but that's just me.

[sharktacos]

Vlado et al.,

As you consider adding clearcoat to the VrayMtl, it would be worth taking a look at the PxrSurface shader. It has a lot of physically based parameters included for this, including Energy Compensation, Iridescence, Thin Film Thickness, Layer thickness, and Absorption Tint.
https://rmanwiki.pixar.com/display/R...ce-Iridescence

I would add this to th VrayMtl for purposes of physically correct energy conservation. As Art48 says, awesome > clutter.

[padre.ayuso]

I just tried this and it is awesome! Thanks Vlado!!!!

My two cents, I'd definitely add it to the VRayMTL. However, if you are going to start doing a more complex material for VRay 4.0 or something, something that is more "Advanced user" sort of speak, then maybe you can create a second type of VRay Material and eventually I'll guess the one will fade away and the most used will win and stay.

[simmsimaging]

Testing this out with the scene Vlado posted (Vray Next in Max 2020) I am wondering if I'm missing something: I do not see any parameters for the OSL texture. There is no shader parameter rollout and no apparent way to edit the thickness etc. Is there something I need to do to expose those controls in Max?

[vlado]

This works fine for me actually. Can you show me a screengrab of the material editor?

Best regards,
Vlado

[simmsimaging]

Thanks for the reply Vlado. I went back to the file to grab a screen shot and now I can see it. There is also a rollout for OSL include Paths that wasn't showing up before too. I am *reasonably* certain that it was not just me failing to scroll down far enough - that was the first thing I checked. Anyway, only thing that changed is a reboot of the computer in between. Seems solved for now anyway.

[Leeds3D]

loving this shader but i'm having a few crashes using it (similarly with the osl glass shader - http://www.rensheeren.com/blog/osl-archglass/ but only now we've updated from 3ds max 2016 to 2019 - it didn't crash at all in 2016). any pointers or ideas i can look at to help? at the moment either in new scenes or adding this osl shader to current proects i get random crashes at the point i hit render.