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Nuit Interop (formerly FabricSkyBoxes Interop) logo

Nuit Interop (formerly FabricSkyBoxes Interop)

Mod

by FlashyReese

Nuit Interoperability for OptiFine/MCPatcher and legacy FabricSkyBoxes sky formats

Type

Mod

CurseForge Downloads

6,238,010

CurseForge ID

697845

Modrinth Downloads

8,339,974

Modrinth ID

HpdHOPOp

Last Updated

Jun 11, 2026

Description

# Nuit Interop _Formerly known as **FabricSkyBoxes Interop**_ **Nuit Interop** provides compatibility for **OptiFine/MCPatcher custom skies**, allowing them to work seamlessly with [Nuit](https://modrinth.com/mod/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 - 🔁 **OptiFine/MCPatcher Conversion** Automatically translates custom skies from OptiFine or MCPatcher resource packs to Nuit’s format at runtime. - 🧠 **Smart Fallback** Will not convert if a native Nuit/FabricSkyBoxes-format skybox is detected in the resource pack. - ⚙️ **Flexible Control** Lets users disable loading native Nuit-format skyboxes in favor of converted ones, for testing or override purposes. - 🏛️ **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](https://modrinth.com/mod/nuit) ##### ⚠️ 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: [![Support me on Ko-fi](https://i.imgur.com/FSNi7zk.png)](https://ko-fi.com/flashyreese)

Compatibility

Mod Loaders

Fabric Neoforge Quilt

Game Versions

1.16.5 1.17.1 1.18.2 1.19.2 1.19.3 1.19.4 1.20 1.20.1 1.20.2 1.20.3 +6 more

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Included in Modpacks

Homestead Homestead Homestead - A Cozy Survival Experience Homestead - A Cozy Survival Experience Pokemon Elysium Pokemon Elysium ArdaCraft ArdaCraft Dungeon Heroes (RPG Series) Dungeon Heroes (RPG Series) OptiFine for Fabric OptiFine for Fabric The End of an Era The End of an Era My Biome Is So Beautiful My Biome Is So Beautiful Ultimate Origins Modpack Ultimate Origins Modpack TExperience: Horror + Performance (Fabric) TExperience: Horror + Performance (Fabric) OptiFabriс OptiFabriс Sebi's Distant Horizons Optimization Pack Sebi's Distant Horizons Optimization Pack Origins SMP: Fabric Origins SMP: Fabric Aedans Vanilla Plus Aedans Vanilla Plus Seecret Sunday Seecret Sunday Better fps than vanilla and optifine I can't believe it's not Optifine! I can't believe it's not Optifine! BetterFPS BetterFPS Pretty Without Shaders Pretty Without Shaders AestheticCraft - Cozy Adventure | MC Cozy 1.21.1 AestheticCraft - Cozy Adventure | MC Cozy 1.21.1 BottomlessThought's Realism BottomlessThought's Realism OptiFinium OptiFinium Flawlessly Optimized Flawlessly Optimized New VanilIa New VanilIa Kinetia Kinetia MCParks - The Unofficial Modpack MCParks - The Unofficial Modpack Dungeonia - The rpg modpack exploration withe dungon perspective Dungeonia - The rpg modpack exploration withe dungon perspective Dwarfz Fantasy Dwarfz Fantasy EldenCraft - A Dark Fantasy Challenge EldenCraft - A Dark Fantasy Challenge OpalFab (OptiFine alternatives on Fabric) OpalFab (OptiFine alternatives on Fabric) HolyWorld Plus HolyWorld Plus VisualCraft by Moizoref VisualCraft by Moizoref World End Dungeon Heroes World End Dungeon Heroes Create Fabulously [Fabric] Create Fabulously [Fabric] Blood on the Clocktower (BOTC) Blood on the Clocktower (BOTC) DexMasters [Cobblemon] DexMasters [Cobblemon] Wild Odyssey Wild Odyssey Warriors of the Rising Sun Warriors of the Rising Sun Our Story - Earth 2 (soon) Our Story - Earth 2 (soon) The New Exploration!!! The New Exploration!!! Faes & Frogs - Fabric Faes & Frogs - Fabric Chunk by Chunk (Maggi's Edition) Chunk by Chunk (Maggi's Edition) Mainchit Mainchit Blades of the East Blades of the East

External Resources

CurseForge Modrinth Source Code Issues