Nuit (formerly FabricSkyboxes)

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

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Showcase

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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

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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.

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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.

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Credits

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

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Community & Support

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

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Breathe new life into your Minecraft skies with Nuit.