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Materials
Materials in Unreal Engine define the surface properties of the actors in your level. These properties can include color, reflectivity, bumpiness, and transparency. To calculate these properties, materials use input textures, as well as properties that you can change in the Details panel. You can edit materials using the Material Editor.
The Material Editor UI consists of a menu bar, a toolbar, and the regions shown below.
Station Example
In this station, there is a ball with a blue material. Click the ball, then in the Details panel, find the material. Double-click the preview image to open the Material Editor.
In the Details panel, under Parameter Groups > Surface Properties, you can change the Base Color, Metallic, and Roughness properties of the material.
For more information on the Material Editor, see the Material Editor Guide.