Rendering refractions

One of the most essential techniques in shader network creation is building a…working glass shader. We are going to learn about that in this chapter.…That will apply actually to other software besides Maya because the principles are all the same.…I'll start by a assigning a Blinn material to my martini glass, select it and…right-click and choose Assign New Material, that will be a Blinn Shader.…I just want to change up a couple of these attributes, so let me rename this.…I'll call it glass_blinn and just play around with some of the basic attributes first.…

The color should be almost black.…I am going to bring that Diffuse Color down to nearly nothing.…Glass doesn't really have a diffused reflection, because it's very highly polished.…Transparency, I want to increase that up to maybe about .9 or something like that. …Then I want to just give it a little bit better highlight here, a very…small, but intense highlight. I'll reduce the Eccentricity and increase the…Specular Roll Off up to a value of one.…