You can apply materials to objects in the Scene View.
You can apply materials to an entire object, or to all objects on a layer, depending on the selection resolution.
When you create or modify a material on the Materials tab in the Autodesk Rendering window, you can:
Select an object in the Scene View or in the Selection Tree.
Click Render tab > System panel > Autodesk Rendering .
Click Materials tab.
Right-click a material and click Assign to Selection on the context menu. The material is applied to the object.