Images in Two Angled Mirrors Simulation

Two plane mirrors hinged at an angle make several images: each mirror reflects the object and the images formed by the other mirror, as long as they are in front of it, until an image falls behind both. This simulation builds that chain of reflections exactly, shows that all the images lie on a circle centred on the hinge, and traces the actual light path to any image you tap.

At 90° you get 3 images, at 60° five; as the angle closes the images multiply — the kaleidoscope effect. When 360/θ is even the count is 360/θ − 1; when it is odd it depends on the object: 360/θ − 1 on the bisector, 360/θ off it.