Now that we have our UV map all set up, we can create a custom UV texture! But, before we can even do that, we need to export our current UV map from Blender to a file that an image manipulation program, such as GIMP or Photoshop, can read.
Now that we have GIMP downloaded, we can export our UV map from Blender to a format that GIMP can read. To do this, make sure we can view our UV map in the Image Editor. Then, go to UVs | Export UV Layout.
Then save the file in a folder you can easily get to, naming it
UV_layout or whatever you like.
Now it's time to open GIMP!
Before we begin, we need ...