Blending Modes: the Basics

Blending modes are for controlling how each layer interacts with the layers beneath them. They're object specific modes that can't be effected over time. If you want to change one of them midway through a composition, you have to split that layer and apply it to one half of it.

Adobe breaks them all out into category, each category defined by a single parameter, but differ slightly on how this is parameter is translated.

Normal category

Subtractive category

Additive category

Complex category

Difference category

HSL category