To convey your design intent and help others visualize your ideas, you can apply materials to your conceptual designs in AutoCAD. The AutoCAD materials library is easily accessible from the tool palette and it includes more than 300 materials that you can simply drag and drop onto your model. If you don’t find exactly the material you’re looking for in the materials library, you can create your own using the Materials editor. Access the Materials editor from the dialog box launcher in the lower right corner of the Materials panel on the Render tab.
To view materials on your model, you’ll need to set the Realistic visual style (available from the upper left corner of the Render ribbon tab). The Realistic visual style displays the model with Isolines turned on. If you’d like to view it without Isolines, you can select No Edges in the Edge Effects panel of the Render tab.