The best way to give a Blending Mode Photoshop definition is by looking at how it makes a layer behave. Each of the Photoshop blending modes works according to a specific algorithm.
This particular ‘formula’ makes the pixels on the top layer change the color, brightness and luminosity of the underlying layers in different ways, depending on the blending option you’ve selected.
But blending modes cannot only be used for layers. In fact, you’ll find them in many other places in Photoshop, too. Most of the painting and editing tools come with blending options. This includes the Brush and Pencil tools, the History Brush, Stamp, Paint Bucket, Sharpen, Blur and Smudge tools.
And also layer styles and smart filters have blending options in Photoshop.
However, even though they come with different tools, filters, layer styles, and layers, the way blending modes work in Photoshop is always the same.
Most commonly, blending modes are used with layers, and that’s what we’re going to look into in this tutorial!.