Nuit Interop (formerly FabricSkyBoxes Interop)
Nuit Interoperability for OptiFine/MCPatcher and legacy FabricSkyBoxes sky formats
Nuit Interop
Formerly known as FabricSkyBoxes Interop
Nuit Interop provides compatibility for OptiFine/MCPatcher custom skies, allowing them to work seamlessly with Nuit — the modern, multiloader successor to FabricSkyBoxes.
This mod enables out-of-the-box support for existing OptiFine resource packs and will soon also offer backward compatibility with legacy FabricSkyBoxes packs.
✨ Features
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🔁 OptiFine/MCPatcher Conversion 
 Automatically translates custom skies from OptiFine or MCPatcher resource packs to Nuit’s format at runtime.
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🧠 Smart Fallback 
 Will not convert if a native Nuit/FabricSkyBoxes-format skybox is detected in the resource pack.
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⚙️ Flexible Control 
 Lets users disable loading native Nuit-format skyboxes in favor of converted ones, for testing or override purposes.
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🏛️ Legacy FSB Support (Upcoming) 
 Planned support for loading FabricSkyBoxes-formatted packs, helping users migrate gradually.
📘 Learn more about the core mod here:
🔗 Nuit on Modrinth
⚠️ Disclaimer
Conversions are best-effort and may not be pixel-perfect due to fundamental differences between how OptiFine and Nuit handle sky rendering.
💙 Support the Project
If you find this project useful, consider supporting development:
