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threejs-postprocessing

Add post-processing effects to Three.js scenes with EffectComposer multi-pass rendering.

Updated Apr 2, 2026
Search Tags:#rendering#shaders#three.js#bloom#visual-effects#postprocessing#effectcomposer
One-click install
npx skills add https://github.com/gyalamanch001a/pur-new --skill threejs-postprocessing-gyalamanch001a
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: threejs-postprocessing
Source: https://github.com/gyalamanch001a/pur-new/tree/main/.agents/skills/threejs-postprocessing
Command: npx skills add https://github.com/gyalamanch001a/pur-new --skill threejs-postprocessing-gyalamanch001a

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps you add polished screen-space effects to Three.js scenes without rebuilding your rendering pipeline, making it easier to create glow, blur, depth, color grading, and other cinematic visuals.

Core Features & Use Cases

  • EffectComposer setup: Combine RenderPass and multiple post-processing passes in a reliable render loop.
  • Common visual effects: Apply bloom, FXAA, SSAO, depth of field, film grain, vignette, glitch, pixelation, halftone, and outline effects.
  • Custom shaders: Build your own ShaderPass effects such as color inversion or chromatic aberration for tailored visual styling.
  • Real-world use case: Use it to turn a basic product demo, game scene, or data visualization into a more immersive and readable experience with layered visual enhancement.

Quick Start

Set up an EffectComposer with a RenderPass, add the effect you want, and render your Three.js scene through the composer in your animation loop.

Frequently Asked Questions about threejs-postprocessing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I add bloom and visual effects to a Three.js scene?▼

To add bloom and visual effects to a Three.js scene, configure an EffectComposer with a RenderPass and chain multiple post-processing passes in your render loop for layered cinematic output.

What is post-processing in Three.js and when do I need it?▼

Post-processing in Three.js is a multi-pass rendering technique using EffectComposer to apply screen-space shaders. You need it for cinematic visuals like depth of field, vignette, or glitch effects in interactive 3D applications.

Can I write custom shaders for Three.js post-processing effects?▼

Yes, you can write custom shaders for Three.js post-processing by configuring a ShaderPass to apply tailored screen-space effects like chromatic aberration or color inversion within the EffectComposer render loop.

Does this EffectComposer approach handle window resizing for post-processing passes?▼

Yes, the EffectComposer approach includes resize-safe pass management to ensure that visual effects like FXAA, SSAO, and depth of field maintain deterministic visual output across different viewport sizes.

What is the best way to apply anti-aliasing and depth of field in Three.js?▼

The best way to apply anti-aliasing and depth of field in Three.js is using an EffectComposer-based multi-pass pipeline, combining specific render passes to achieve deterministic and polished visual output.

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