Sometimes, you just want to use a seamless texture or a plain color on some part (or everywhere) of your mesh, then make a copy and just change a small part. This is how to use a texture channels to define these areas.
Sorry for my “look” it was terribly hot here when I recorded lol.
French : https://youtu.be/nv5EeHQ5I_c
Source : http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1400019
Artist : http://incompetech.com/
Source : http://www.twinmusicom.org/song/258/journey-in-the-new-world
Artiste : http://www.twinmusicom.org/