Nuit

Formerly known as FabricSkyBoxes, Nuit is a powerful and flexible custom skybox engine for Minecraft.

It goes far beyond OptiFine’s skybox system, offering rich features like keyframe-based transitions, rotation, custom weather rendering, and full support for both Fabric and NeoForge.

Design immersive skies with dynamic day/night cycles, custom fog, sunrise/sunset glow, weather-aware rendering, and more, all backed by a robust JSON skybox format.

Nuit is currently in beta. Some features may evolve over time. Feedback is welcome.

View the Wiki and Format Documentation
Source Code on GitHub

Showcase

Features

• Fabric and NeoForge support
• Keyframeable fade and rotation transitions
• Custom sunrise, sunset, night, and weather rendering
• Fog customization per skybox
• Modular JSON-based skybox format
• Animated textures with optional frame interpolation
• Optimized texture loading and runtime performance

Skybox Format

Nuit uses a custom JSON-based format designed for flexibility and future-proofing.

You can create highly detailed and dynamic skyboxes with precise control over how and when they render.

Learn how to create your own skyboxes in the Wiki Format Documentation.

Frequently Asked Questions

Can I use OptiFine/MCPatcher skybox packs?
Nuit does not support those formats natively. Use Nuit Interop to load compatible OptiFine/MCPatcher custom sky resource packs through Nuit.

Is it modpack friendly?
Yes. Nuit is licensed under MIT and fully modpack-compatible.

What happened to FabricSkyBoxes?
FabricSkyBoxes has been rebranded to Nuit to reflect its expanded scope beyond Fabric.

Credits

• Nuit logo by UsernameGeri
• Logo render uses Minecraft World | high quality | free by SOLDMARS, licensed under Creative Commons Attribution

Community & Support

• Feature suggestions & issue tracker
• Discord for help, discussion, and previews

Breathe new life into your Minecraft skies with Nuit.