Animating a bobbing head or head-bob in After Effects

Posted on Sunday, 19 August 2018
Top 21 Reasons for using Motion Graphics in Animation
2D Animated Music Video Makers

Animating a bobbing head or head-bob in After Effects – Simple Expression

head-bob bobbing head
So you are looking to animate a head or object as “bobbing”?
I.e. you want an object to be moving up and down, repeatedly…

This expression for a layers position can be used for this effects, simply for the y-position and still allows for keyframing the position as well. The same expression can be used for a camera position:

f = 1 // the frequency in times per second for the head-bob
a = 20 // head-bob amount in pixels
y = Math.sin(time*Math.PI*f)*a;
value-[0,y,0]

To adjust the speed and distance of the head-bob, simply modify the values for frequency and amount in pixels.

Top 21 Reasons for using Motion Graphics in Animation
2D Animated Music Video Makers
Anders Sundstedt Photo

Anders is the Founder and Owner at Sundstedt Animation, where he creates handcrafted animated explainer videos, music videos and whiteboard videos. He lives in Glasgow, Scotland and enjoys film and photography. You can follow him on LinkedIn, Google+, Twitter and Instagram.