# IrisShaders/Iris

A modern shaders mod for Minecraft compatible with existing OptiFine shader packs

Repository: https://github.com/IrisShaders/Iris
Canonical: https://ross.abutalabs.com/products/irisshaders-iris
Homepage: https://irisshaders.dev
Language: Java
License: LGPL-3.0
License Family: copyleft
Topics: hacktoberfest, minecraft, opengl, shaders
Last push: 2026-08-12T21:02:53+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 8, longevity 100
- inputs: {"age_days": 2141, "days_push": 21, "days_rel": 683, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3816, forks 797 (observed 2026-08-28T04:08:20.913122+00:00)

## What it is
Iris is an open-source shaders mod for Minecraft: Java Edition that loads OptiFine-compatible shader packs with good performance and mod compatibility. It pairs with Sodium for rendering optimization and supports Fabric (1.16.5+) and NeoForge (1.21.1+).

## Use cases
- run OptiFine shader packs in Minecraft without OptiFine
- improve Minecraft graphics with shaders while keeping high FPS
- use shaders together with Sodium and other mods
- play Minecraft with shader packs on Fabric or NeoForge
- find an open-source alternative to OptiFine shaders
- load shader packs on modern Minecraft versions

## When to choose
- you want to use existing OptiFine shader packs on modern Minecraft versions
- you need shader support that works alongside Sodium and most mods
- you prefer an open-source, hackable shaders mod over OptiFine
- you play on Fabric or NeoForge mod loaders

## When to avoid
- you play Minecraft Bedrock Edition
- you need Forge support (only Fabric and NeoForge are supported)
- you rely on OptiFine-exclusive features beyond shaders
- you use texture packs depending on vanilla core shaders with shaders enabled

## Facets
- artifact type: plugin
- maturity: active
- function: graphics, game
- domain: graphics
- platform: jvm, cross-platform
- tags: minecraft-mod, shaders, opengl, optifine-compatible, fabric, neoforge, sodium, minecraft, game-development

## Member repositories
- IrisShaders/Iris (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:20.913122+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 2026-08-29T18:26:32.345822+00:00, confidence not recorded.
  - readme: https://github.com/IrisShaders/Iris (fetched 2026-08-28T04:08:20.913122+00:00, sha f775c230ec52)
  - homepage: https://irisshaders.dev (fetched 2026-08-29T09:21:21.422274+00:00, sha 8089c64378b6)
- Data as of 2026-08-30T08:39:29.467469+00:00.