#3d

Build immersive 3D with Three.js. Setup: 1. Scene, camera, renderer trio. 2. Geometry and materials. 3. Lights (ambient, directional, point). 4. OrbitControls for camera. 5. Animation loop with requestAnimationFrame. 6. GLTF model loading. 7. Texture mapping and normal maps. 8. Post-processing effects. Use React Three Fiber for React integration and implement raycasting for object interaction.