Cirrus

The sky's the beginning.

Cirrus is a client-side skybox overhaul that stays close to Minecraft's vanilla style. It adds layered clouds, richer nights, and weather-aware effects, all with an in-game config.

Client-side only. You can use Cirrus on multiplayer servers without installing it on the server.

Cirrus is designed to be used without Iris or shader packs.

What it adds

• Three independently moving cloud layers with adjustable height, speed, opacity, and render distance
• Customizable morning, day, evening, and night gradients with smooth palette transitions
• Clouds that darken with storms and light up around lightning
• Narrow, layered lightning bolts with deterministic branching and electric glow
• Configurable stars with twinkle, color variation, and a North Star
• Occasional shooting stars with customizable trails, speed, color, and glow
• A rotating Milky Way and a subtle night-sky color palette
• Animated northern lights that appear in cold biomes by default (configurable!)
• A configurable End sky with moving clouds, lightning, and waves of spreading darkness

Every major effect can be adjusted or turned off.

Requirements and compatibility

• Minecraft 1.21.1 - NeoForge
  • Requires Architectury API and YetAnotherConfigLib
• Minecraft 1.21.1 - Fabric
  • Requires Fabric API, Architectury API, and YetAnotherConfigLib
• Minecraft 1.21.10 - Fabric
  • Requires Fabric API and YetAnotherConfigLib
• Minecraft 1.21.11 - Fabric
  • Requires Fabric API and YetAnotherConfigLib
• Minecraft 26.1.x - Fabric
  • Requires Fabric API and YetAnotherConfigLib
• Minecraft 26.2 - Fabric
  • Requires Fabric API and YetAnotherConfigLib

Optional mod compatibility

• Distant Horizons 3.2+ is supported on all listed versions above
• Caelum compatibility is available only on Minecraft 1.21.1 NeoForge
• Where Winds Blow compatibility is available only on Minecraft 1.21.1 NeoForge
• Shader packs and mods that replace cloud or sky rendering may override Cirrus or cause visual conflicts

Modpacks

You may use this mod in modpacks, videos, servers, and other projects. A link back to this CurseForge page is appreciated.

Credits

Created by me :D

Generative AI was used mainly as a development aid for coding, debugging, and porting assistance to 26.x versions (rendering changes). All artwork, assets, ideas, design, and creative direction are my own.

License

All Rights Reserved.

Feel free to use this mod in modpacks, videos, etc. Just provide a link back to this page if possible :)

Please don't port this mod without express permission from me.

For general questions, contact me on Twitter (@prodbyjvn) or Discord (ijvn).