Build a photoreal bedroom at dawn in three.js, where everything you see is code: no 3D model files, no image textures, no HDRIs. Generate every mesh and texture yourself (procedural geometry, noise and canvas-drawn textures). The room: a quiet, lived-in bedroom at first light. A big dark-framed window with two panes and real glass, trees outside swaying gently in the wind, a soft grey-white dawn sky. Long linen curtains on a rail on both sides of the window. A white radiator under the window, a windowsill with a small ceramic pot, a glass of water and a few books. A pothos plant whose vines hang down from the top corner and over the sill. A white desk with a desk lamp, pencils in a cup, a mug; floating wood shelves with books, a small framed print and postcards taped on the wall; a light wood wardrobe; an unmade bed with a rumpled duvet in the foreground; a chair with a knitted throw on it. Woodchip-style wallpaper, oak floor. The look matters most: it should read as a photo, not a 3D demo. Cool, soft daylight coming only through the window, with bounce light and soft shadows in the corners, slight bloom on the bright window, a gentle filmic color grade, real-looking materials (linen, knit, wood grain, ceramic, glass that reflects and refracts). No flat untextured surfaces and no plain low-poly look. Keep it running smoothly in a normal laptop browser. When the page opens, play a 20-second cinematic camera move by itself, slow and eye-level like a handheld film shot: start close on the windowsill and the glass of water with the trees moving behind it, drift back past the plant and the desk, and end on a wide view of the room from beside the bed. After that, the viewer can look around with the mouse and walk with WASD. Make it one HTML file that opens offline in a browser: no CDN links and no network requests. If you use a library like Three.js, put it inside the file. No image files, no image or video models.