The Motion Boutique shows how you can fill objects using Newton 3 and then mix them and flush them out again.
A new tutorial from the Motion Boutique team shows how you can harness the physics engine for After Effects to fill shapes quickly. “In this classic case of animation which uses physics intensely, you’ll learn how to fill a shape, turn it to a washing machine then drain it.”
Newton 3 in Ae.
Newton 3 brings realistic physics to After Effects, making your 2D composition layers act like solid objects that interact with each other. The plugin offers controls for type, density, friction, bounciness, and velocity, much like 3D dynamics systems. Once you complete your simulation, the animation plays out with standard keyframes in After Effects, so you are free to adjust things how you like.