It's pretty clever optimization, it actually only shows a few dozens images at all times and only update the groups as you zoom in, for example https://tiles.on

It's pretty clever optimization, it actually only shows a few dozens images at all times and only update the groups as you zoom in, for example https://tiles.onemillionscreenshots.com/2024-05-01/tiles/-1/-3/0.jpg https://tiles.onemillionscreenshots.com/2024-05-01/tiles/-1/... You don't even need something fancy like WebGPU/WebGL, just the CSS transition property will do the job there.