Stepping Feet Illusion and radial version

Many other illusions at the site, including some favorites such as

Pinna-Brelstaff Illusion though I never actually call it that

Roget’s ‘Palisade’ Illusion I’ve seen a similar effect while walking past a door and seeing a crt monitor through the narrow gap between the door and jamb.

Motion Binding has a subtle demonstration about orthogonal dimensions really being independent

Here’s the index in case you want to pick and choose, rather than march through all of them