Shogo Oshima

Web Developer

Sketches
GitHub X

#521Cylinder Mirror Anamorphosis

The 17th-century cylindrical-mirror anamorphosis restaged as a neon light show. Three log-stretched rainbow smears ring the floor, unreadable from any direct view; the chrome cylinder at the centre re-verticalises whichever copy the camera faces into a blazing hypno-eye of angular rainbow, sunburst rays and expanding shockwave rings. The copies sit fixed in world space, so the endless orbit resolves and dissolves the hidden image every fourteen seconds, flaring the emblem at each alignment. Rays hit just two analytic primitives — the floor plane and the mirror cylinder solved as a quadratic — and each cylinder hit reflects back down to the floor in closed form, sampling the same pre-distorted pattern the polar log-warp scrambles on the ground. Iridescent fresnel and a roving specular streak give the chrome its bite; drag to scrub the orbit, press to overdrive the glow.