Nordlight Shaders

A northern lights shader: real-time aurora curtains move across the night sky, snow sparkles, and your breath steams in the cold.

Why Nordlight?

• Aurora Borealis: Layered green, purple and pink curtains wave across the night sky. Red in the Nether, huge in the End.
• Breath Vapor: In the cold (high mountains, or outdoors at night) your breath fogs every few seconds.
• Snow Glitter

Every effect above is a real setting in the shader menu (Signature Effects page), so you can tune it or turn it off. Underneath: real-time shadows, animated water, volumetric clouds, fog, bloom and colour grading.

Files

Six quality levels, each as its own zip, for Minecraft 1.13 and newer (Iris or OptiFine) and for 1.8.9–1.12.2 (OptiFine): Potato, Low, Medium, High, Extreme and Extreme Astor (the full look, as in the screenshots). Not sure? Start with Medium. Every zip also contains all levels as profiles in the shader menu, so you can switch in game.

Compatibility (what was actually checked)

• Checked in game: Minecraft 1.21.4 with Iris (Overworld, Nether and End screenshots on this page).
• All shader programs of both files pass a GLSL compile check.
• Other versions and OptiFine were not all tested in game; please report problems in the comments.
• Distant Horizons: not supported. Client-side only.

Installation

1. Install Iris (with Sodium) or OptiFine.
2. Put the zip into .minecraft/shaderpacks (do not unzip it).
3. Options → Video Settings → Shader Packs → select the pack.

About

Made by AstorUVZ (ASTOR SHADERS) with substantial AI assistance (Claude) for the shader code and this text; built, compiled and checked in game by the author. All screenshots are real in-game captures of this pack. Also on Modrinth: search ASTOR SHADERS.

License

All Rights Reserved, with permission to play with it, record videos and streams, and include it in modpacks (link back to this page). Re-uploading, copying the code into other packs or selling it is not allowed.