I’m putting together a web page that lets visitors upload an STL, STEP, OBJ or 3MF files and explore the 3D object right in the browser, and I want the experience to feel smooth and intuitive. Using Three.js, I need a self-contained interface where the model loads quickly and the user can freely rotate and zoom to inspect it from every angle. No additional editing or animation controls are required—just a clean, responsive viewport with orbit-style navigation, basic lighting, and a subtle loading indicator so the page never feels stalled. Performance matters, so please bake in sensible optimizations (compressed textures, efficient geometries, requestAnimationFrame loop tuned for 60 fps). Mobile touch gestures should mirror desktop mouse controls, and the code must remain modular enough for me to drop it into an existing React project later without major refactoring. Deliverables: • Complete Three.js source files (ES6 modules) • One HTML demo page that shows the interface in action • Brief setup notes covering model import, control tweaks, and how to slot the component into another codebase If this sounds like a quick win for you, I’m ready to review your approach and timeline.