What I built
• A photoreal workshop scene: real-time 3D objects with clean and dirty materials, studio lighting and a turntable you rotate by hand
• Thumb-anywhere aiming of a brass pressure lance; the water stops at the first surface it hits, splashes and leaves wet, shining areas that dry over time
• Six collector objects for Season 1 (helmet, radio, model coupé, lantern, watering can, mantel clock), unlocked one by one
• Per-part progress to 100%, a hold-to-compare before/after view, English and French, progress saved with Snap storage
• Each object optimized to about 1 MB so the whole season fits Snapchat's 8 MB Web Lens limit