Lightweight shader overhaul. A vanilla-like pack by Sandmuel featuring atmosphere, bloom, colored lighting and foliage, tuned for potato-tier hardware and better. Compatible with Iris and OptiFine across Minecraft 1.21 – 1.21.11. Licensed GPL-3.0-only, so the download is mirrored right here on MineSpecs — no ads, no redirects.

How to install Relumination

1. 1Install a shader loader for Minecraft 1.21 – 1.21.11 — Iris (pairs with Sodium) or OptiFine. Relumination is a shaderpack, so it needs a loader to run.
2. 2Download the Relumination .zip from the button above — keep it zipped. It is mirrored on MineSpecs, so there is no ad-gate or redirect.
3. 3Drop the .zip into your .minecraft/shaderpacks folder (%appdata%\.minecraft\shaderpacks on Windows, ~/Library/Application Support/minecraft/shaderpacks on macOS).
4. 4Launch the game, open Options → Video Settings → Shaders, and select Relumination.

First time? How to install Minecraft shaders

Performance & what to expect

Relumination is rated potato performance impact. It is the lightest tier in the catalogue — it runs on integrated graphics and older laptops. It renders atmosphere, bloom, colored lighting and foliage. The look is vanilla like.

More vanilla like shaders

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Relumination is created by Sandmuel and mirrored here under its GPL-3.0-only licence. MineSpecs is an unofficial fan project and is not affiliated with Sandmuel, Mojang Studios or Microsoft.