Join Ran Ben Avraham for an in-depth discussion in this video Adding a wiggle expression to the position values, part of After Effects: Bouncing Animated 3D Sphere.
- [Instructor] I would like to add some wiggle to the sphere…so that when I pause its animation,…to let the viewer read the text on the screen,…the sphere won't stand perfectly still.…So, first of all, let's reveal the 3D_Sphere position.…And I'm talking about the 3D_Sphere layer itself.…And not the no named position.…So we'll mark the 3D_Sphere layer and hit P.…
Now let's Alt click on the stopwatch.…And write a wiggle expression.…We'll write wiggle.…Open parenthesis.…Point two times a second, comma,…100 pixels in any direction.…And close parenthesis, and we'll close the expression…with a semicolon.…Now if we'll scrub on the timeline,…we can see our sphere wiggles very nicely.…
At the moment, our sphere is 2D.…So it only wiggles on the X and Y axis's.…Let's convert it into a 3D layer.…And now it wiggles on all three axis's, X, Y, and Z.…This amount of wiggle is applied equally…to the spheres X, Y, and Z axis's.…And while it might look okay for the Z axis,…it just doesn't work for the X and Y axis's.…
So let's separate the three axis's…
This is a project-based learning experience. Each step of the process is rich with object lessons that are applicable to the variations that a motion design and compositing artist will face in the real world.
- Creating a sphere
- Adding reflections and color correction
- Creating squash and stretch animation
- Expression linking a sphere's rotation properties
- Connecting a sphere to a position null
- The bounce-decay-stop expression
- Animating the position and rotation
- Animating the sphere color map
- Creating an automated shadow