How a mask works

In this exercise I am going to give you a sense of how masking works inside of Photoshop.…Now I am working inside a file called Stencil demo.psd but I don't recommend…you open this file.…Because I won't be providing you with a kind of hands-on instructions you'll…need to follow along.…Rather, think of this as a conceptual demonstration of how masking works.…Now let's imagine for a moment that I wanted to use a real-world air brush to…paint some text onto this photograph.…Then I'd go ahead and lay down a stencil or if you prefer a frisket and then…paint onto that stencil in order to ensure that I paint inside the lines.…

So having set down my stencil, I'm going to go ahead and switch to the Brush…tool here in the toolbox and I want to paint with yellow.…So I'll go over to the Color panel and notice that I'm seeing my HSB…sliders, those stands for Hue, Saturation and Brightness, which is my…preferred way of dialing in colors.…If you want to work with the sliders as well, then click the flyout menu icon…