Learn THREEJS with Real Code Examples
Updated Nov 26, 2025
Practical Examples
Simple rotating cube
GLTF model loading and rendering
Particle systems
Physics-enabled 3D simulations
AR/VR interactive scene via WebXR
Troubleshooting
Check console for WebGL errors
Ensure model paths are correct
Verify textures are loaded
Update renderer size on window resize
Enable shadows and lights correctly
Testing Guide
Test scene performance in different browsers
Use Stats.js to measure FPS
Validate shader compilation
Check model and texture loading
Use dev tools for memory profiling
Deployment Options
Static hosting (Netlify, Vercel)
CDN for assets
Integration with React/Next.js
Use Webpack/Vite for bundling
Progressive enhancement for mobile devices
Tools Ecosystem
Three.js Editor - browser-based scene editor
GLTFLoader/OBJLoader - model loaders
Postprocessing library
three-stdlib - utilities and helpers
ShaderMaterial for custom GLSL effects
Integrations
WebXR for VR/AR
Cannon.js, Ammo.js for physics
GSAP for animation control
React Three Fiber for React integration
Troika-3D text rendering
Productivity Tips
Reuse meshes and materials
Use helper libraries for loaders and controls
Keep animations modular
Profile performance regularly
Use the Three.js editor for prototyping
Challenges
Managing complex scenes
Shader programming for custom effects
Optimizing performance for large models
Synchronizing physics and animation
Cross-browser and mobile compatibility