Use Photoshop to create a realistic metal texture. The texture can also be used for 3D modeling.
Step 1
Create a new Photoshop document (File> New or Ctrl+N). For this tutorial, we've created a 800x600 pixels document.

Step 2
Set the background color to 50% grey. You can edit the background color by clicking on the background color in the toolbox.

Step 3
Now we'll add some noise to the image. To do this, use the Add Noise tool (Filter> Noise> Add Noise). Select Uniform and checkmark Monochromatic. The Amount you specify will determine how visible the metal grain will be.

Step 4
Use the Motion Blur tool (Filter> Blur> Motion Blur) to blur the grain.

Step 5
Now we need to enlarge the layer to hide the edge effect caused by the Motion Blur filter. To do this, use the Rectangular Marquee tool (M) to create a selection of most of the brushed metal area.
