Click
on the status line to open the
Hypershade.
In Maya 2016, building and editing materials in the Hypershade is now more artist friendly and intuitive, with a revamped user interface that optimizes your look development workflow by providing the following features:
Soloing is supported, allowing you to isolate the output of any shading node to see its contribution without having to modify your shading graph.
This functionality helps you to easily identify problems while working through a complex shading network.
Create a shader network in the Hypershade video tutorial

You can load and visualize custom GLSL (OpenGL Shading Language) shaders that support lighting, shadows, and tessellation in the new glslShader plug-in when running Maya in OpenGL Core Profile mode. This plug-in allows you to obtain the same visual fidelity as you can in DirectX11 mode.
In addition, ShaderFX now supports tessellation, displacement and geometry shaders in core profile mode.
To run in core profile mode, select Windows > Settings/Preferences > Preferences to open the Preferences window, and from the Display category, select OpenGL Core Profile as your Rendering engine.
A physically based, real-time shader is now available in Viewport 2.0 that allows you to preview assets textured for physically based rendering.
You can now batch render scenes with ShaderFX shaders using the Maya Hardware 2.0 renderer.