iExpressions combine the power of After Effects expressions with the convenience of effects or plugins. They allow you to use expressions without writing any code.
Keyframe several different expressions on one property
The Expression Timeline allows you to apply several expressions to a property such that each expression is active only for a certain period of time. Instead of an abrupt change between the expressions you can also smoothly transition from one expression to the next.
In this second part you learn a very easy and quick way to create a volume meter by applying the Linear Link 1D iExpression to the opacity of some solids.
This tutorial demonstrates how to automatically animate things to music using iExpressions, a tool allowing all After Effects users to more easily harness the power of expressions.
In this second part we take a look at linking an beat detection. You learn how to link properties to other properties and to automatically animate properties according to the music.