Hi, sorry the title is so badly worded. I know this is also in the documentation somewhere, but I simply cannot remember what its called, so it don’t know what to look up!
Any ways please can someone point me in the direction of what node allows me to create lines based off values inside the material editor? I want to use these lines to create basic masks without having to import a bunch of texture sheets to describe these lines! I definitely saw this once in the documents but forgot to bookmark it 
Thank you
Lewis