# jamieowen/glsl-blend

glsl photoshop blending modes.  glslify formatted.

Repository: https://github.com/jamieowen/glsl-blend
Canonical: https://ross.abutalabs.com/products/glsl-blend
Language: GLSL
License: MIT
License Family: permissive
Last push: 2022-06-23T19:54:04+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4172, "days_push": 1532, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1116, forks 124 (observed 2026-08-28T04:03:38.502668+00:00)

## What it is
A collection of GLSL shader functions implementing Photoshop-style blending modes (screen, multiply, overlay, soft light, etc.), formatted for use with glslify. It is distributed via npm and imported directly into fragment shaders.

## Use cases
- implement photoshop blend modes in webgl shaders
- blend two textures in a glsl fragment shader
- apply overlay or soft light blending in glsl
- import blend mode functions with glslify
- create image compositing effects in a webgl app

## When to choose
- you are writing GLSL shaders with glslify and need standard blend modes
- you want battle-tested Photoshop-equivalent blending math in WebGL

## When to avoid
- you need blend modes in a non-GLSL rendering pipeline like CSS or canvas 2D
- you want a maintained library with recent updates

## Facets
- artifact type: library
- maturity: stable
- function: graphics, image-processing
- domain: graphics, web-development
- platform: -
- tags: glsl, glslify, shaders, blend-modes, photoshop, webgl, gpu, nodejs

## Member repositories
- jamieowen/glsl-blend (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:38.502668+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 2026-08-30T06:41:58.506014+00:00, confidence not recorded.
  - readme: https://github.com/jamieowen/glsl-blend (fetched 2026-08-28T04:03:38.502668+00:00, sha 52f0d0477fc2)
- Data as of 2026-08-30T08:39:29.467469+00:00.