Animated GIFs are nothing new, but by carefully adding a couple of solid-colored vertical lines to these moving images, an incredible three-dimensional effect is created. This optical illusion is achieved when characters and objects move into the foreground, seemingly extending beyond the barrier of the image. Continue reading for more.
According to My Modern Met, "The solid, dividing strips serve as visual markers for the foreground. Once anything breaks out in font of them, blocking the view of the white dividers, the viewer's brain immediately translates this as a three-dimensional scene. The best 3D gif creators take note of this effect and tend to choose scenes from movies and clips from videos in which something is initially in the background and makes its way into the foreground, whether it be a person, animal, monster, or projectile object."