To create a ShaderFX shader
on the Materials shelf. A Shaderfx Shader is automatically created and assigned to the object.
-click an object and select Assign New Material, then select Shaderfx Shader from the Assign New Material window.
-drag the material from the Hypershade to the object in your scene, just as you would any other Maya shader. To open ShaderFx to edit your node graph
Three nodes are created automatically: Color, TraditionalGameSurfaceShader and Material.