In render views, all surfaces display textures, which are created using image files such as .jpg's. Textures help to create realistic-looking materials and are especially designed to tile without any visible seams.
To add an image to the Materials library
Select View> Library Browser from the menu to open the Library Browser window.
Right click once on the User Catalog folder and select New> Material from the menu that displays.
If you'd like to add a new material to a sub-folder within your User Catalog, right click on the sub-folder of your choice and navigate to New> Material.
On the Texture panel of the Define Material dialog that appears next, click the Browse button next to Texture File.
In the Select Texture File dialog, browse your computer to the image file that you would like to add to the library and click on it to select it, then click the Open button to close the dialog and return to the Define Material dialog.
In the Define Material dialog:
Type a Material Name for your new material.
On the Texture panel, leave the box beside Stretch to Fit unchecked.
Make any other desired changes.
Click OK to close the dialog and add your new material to the library.
Your new material is now saved in your User Catalog and is available for use in any plan.