# pmndrs/postprocessing

A post processing library for three.js.

Repository: https://github.com/pmndrs/postprocessing
Canonical: https://ross.abutalabs.com/products/pmndrs-postprocessing
Language: JavaScript
License: Zlib
License Family: permissive
Topics: post-processing, image-effects, real-time, webgl, image-processing, three-js, effects, composer, 2d-filter-effects
Last push: 2026-08-24T22:18:03+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 95, longevity 100
- inputs: {"age_days": 3921, "days_push": 9, "days_rel": 37, "gap_med": 28, "n_releases_24m": 24}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2835, forks 251 (observed 2026-08-28T04:07:24.536574+00:00)

## What it is
A post processing library for three.js that adds fullscreen image effects like bloom to WebGL scenes via passes and effects managed by an EffectComposer. It is a JavaScript library distributed on npm with three.js as a peer dependency.

## Use cases
- add bloom and other image effects to a three.js scene
- render fullscreen post-processing passes in WebGL
- apply 2D filter effects over 3D renders in the browser
- set up an effect composer pipeline for real-time graphics
- improve visual quality of three.js demos and games

## When to choose
- you are building a three.js WebGL application and want high-quality post-processing effects
- you need a maintained, well-documented effect composer with modular passes and effects
- you want automatic linear color space workflow support in your rendering pipeline

## When to avoid
- you are not using three.js or WebGL for rendering
- you need post-processing for a non-JavaScript engine like Unity or Unreal
- you only need simple static image filtering outside of real-time rendering

## Facets
- artifact type: library
- maturity: active
- function: image-processing, graphics
- domain: graphics, web-development
- platform: browser
- tags: three-js, webgl, post-processing, effect-composer, real-time-rendering, image-effects, game-development, web-server, javascript

## Member repositories
- pmndrs/postprocessing (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:24.536574+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:48:33.262254+00:00, confidence not recorded.
  - readme: https://github.com/pmndrs/postprocessing (fetched 2026-08-28T04:07:24.536574+00:00, sha cdb9e334e6eb)
- Data as of 2026-08-30T08:39:29.467469+00:00.