A Tiling of the Hyperbolic PlaneSeven-sided tiles, seven around every corner — impossible on a flat floor, easy on a saddle-shaped hyperbolic plane. The Poincaré disk squashes that whole infinite plane into one circle: straight lines become arcs that hit the rim at right angles, and tiles look tinier the closer they get to the edge, which is infinitely far away. Drag to slide the tiling around. The journey: each pixel is folded back into a single triangular tile by bouncing it off three mirror lines; counting the bounces two-colours the tiles, and a Möbius transformation streams the whole pattern toward infinity. Pure fragment shader.