A quilt of Truchet tiles — each cell a hashed bit choosing one of two quarter-arc orientations — whose bits flip in a radial travelling wave, so mazes, loops and long curves continuously form and unravel. Arcs are drawn as crisp anti-aliased rings with a soft bloom, and a scatter of cells subdivides into a finer 2×2 sub-quilt for multi-scale texture. Hover to flip a local patch under the cursor, scroll to resize the tiles, and press to punch a mass flip wave across the whole field.