But can you imagine how many keyframes we need to put to animate the wing during a small five-second composition. Suppose we have a butterfly assembled from three parts: left wing, right wing, and body.Īnd we need to make the wings rotate around the Y-axis without stopping, thereby creating the effect of realistic flapping of the wings. A simple expression for looping the animation. I use these expressions in almost every other project and they make my life much easier.ġ) So, the first one is loopOut(). In this article, I want to tell you about 5 simple, but nevertheless very useful expressions.