From the course: Photoshop One-on-One: Advanced

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Blending layers

Blending layers

- The topic of this chapter is Blend Modes. Now, in case you haven't heard of them before, a blend mode uses some basic math. Addition, multiplication, subtraction, really basic stuff. To blend the active layer with the ones below. Okay, I'm already making it sound a bit difficult, but it's not. You know, opacity, right? If you set a layer to say 75% opacity, that means you're seeing 75% of the active layer and 100 minus 75 or 25% of the layers behind it. Blend modes just use different formulas. Let's say you apply the multiply mode, that tells Photoshop to take the luminance levels from the active layer and multiply them onto the layers below. The result is that the layers darken each other as if they were transparencies laid one on top of another on a light table. Or you might create a magic marker effect like we're seeing here. Once you see it in action, you'll use multiply all the time. Seriously, you and multiply…

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