Build an animated isometric 3D diorama in Three.js (a miniature world inside a cube or block, often glass water), shown as a poster with a title, clock and legend, looping and recordable to video. Use when the user asks for a 3D diorama, miniature scene, isometric scene, tiny world in a cube, or a looping Three.js animation or video of a scene, whatever the theme (flooded railway, snowy cabin, rainy street, lighthouse, forest, space station, ...).