Three.js Post-Processing with EffectComposer
This documentation explains pass pipelines, render order, and how to add cinematic effects without breaking interaction or responsiveness.
Core Concepts
EffectComposer chains screen-space passes. This architecture is ideal when you need bloom, depth of field, film grain, color correction, or anti-aliasing after the base scene render.
const composer = new EffectComposer(renderer)
composer.addPass(new RenderPass(scene, camera))
composer.addPass(new UnrealBloomPass(resolution, 0.8, 0.4, 0.9))Best Practices
- Keep scene setup, update loop, and cleanup code isolated for maintainability.
- Prefer deterministic data flow and avoid hidden side effects in frame updates.
- Profile changes on mobile-class hardware before shipping.
- Document control schemes and provide readable non-canvas text context for SEO.