It won't even really run unless we have a full version of Arnold installed. We're using the Viewport here as our material viewer and we don't want to have the material viewer open at the same time. I've also hidden the create panel, the bins panel and most importantly I've hidden the material viewer. Now I've somewhat hotrodded the Hypershade and I've kind of stripped away almost everything. Close the Attribute Editor and open up the Hypershade window. We'll bring that camera visibility back down to zero. We don't want colored light while we're testing materials. Just want to illustrate that I'm using a monochrome image so that the hue of the lighting is neutral. We can increase that to a maximum of one and see that in the Viewport here. We can select the Skydome, go to its Attribute Editor with Ctrl+A and down in the Visibility section, I've set the set the camera rays to zero. To prevent the visual distraction of a background, I've set the camera visibility to zero in the Skydome attributes. That wouldn't give us a good idea of how the material would look in a completed rendering. If we just used ordinary lights without an environment map, there would really be nothing to reflect and the surfaces would look much darker. We can see that if we tumble or orbit around with alt and left mouse button, we're actually seeing reflections on the surfaces here. This is a good setup for testing materials because we'll be able to see reflections of the environment in the surfaces of objects. In the perspective view, go into the Viewport menu and choose Renderer, Arnold, and then start the interactive production rendering. I've created an Arnold Skydome with an HDR map to provide environment lighting.
I've got a scene set up for material testing. In this course, we're going to cover the basics of the Arnold Standard Surface but in all honesty, we could devote an entire course to exploring its many features. If you've worked with physically-based materials before, the Arnold Standard Surface should be pretty familiar. There are many different shading nodes for various purposes but the workhorse is the Arnold Standard Surface material. Arnold provides a very thorough suite of materials and maps.
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