Hi. I am working with MateriaX standard surface shaders in "USD MaterialX Builder" subnet.

Where would I setup dielectric priority?

Thanks for any help.

I *think* (someone correct me if I'm wrong) that the whole dielectric priority functionality isn't MTLX, but Karma-specific.

So you'll find it only in the Karma material builder.
There you can set them on the Karma Material Properties VOP, Shading section.

protozoan
So you'll find it only in the Karma material builder.

Thank you for this information! That seems to be the way to do it. I'm trying to go all in with USD for my project but I suppose this is not big issue.

protozoan
So you'll find it only in the Karma material builder.

You can set it per object as well with a Render Geometry Settings node.

freshbaked
You can set it per object as well with a Render Geometry Settings node.

I like this option better. Thanks for letting me know about this.