Jake Bartlett Shows Just How Valuable the Linear Expression in After Effects Can Be for Making Custom Controls.
“Linear is an invaluable expression to know and understand in After Effects,” says Motion Designer Jake Bartlett. Linear is an interpolation method. The expression lets you represent values in a variety of different ways, which Jake says “is key to making custom controls” in After Effects.
Bartlett explains the structure and functionality of the expression and walks through a couple of examples showing how it can work. Ukramedia’s Sergei Prokhnevskiy named the expression as one of the 16 most useful. If you want to see the expression in use, making custom controls in After Effects better, then you can have a look at Joe Clay’s tutorial for creating a better parallax effect in Ae.