making "borders" for coloring and shadows
I am fairly new to digital painting and have this really basic question.
Let's say you scan some lineart...then you want to fill with colors and stuff, right??
So, how do I keep the lines as "borders" when I paint with the brush so that nothing "spills over" so to speak. I want to brush brush brush but always keep within the line-border.
Thanks in advance (I am certain this is covered somewhere but I'm feeling very lazy and slow atm ;)