
Optimized Fullbright
Fullbright mod that disables the lighting system to improve performance. Now toggleable with a keybind!
Screenshots


About this Mod
Optimized Fullbright
How does this mod differ from the others?
Instead of just changing minecraft's gamma value like many other fullbright mods, this mod also completely disables minecraft's lighting engine. This reduces the number of lighting calculations the game has to perform, improving performance since there's no reason to compute light levels when they’re always at the maximum.
Because of this, F3 will display every block’s light level as 15, indicating that the mod is working.

Performance comparison
With a simulated lag machine designed to cause more light updates:
(LEFT) Fullbright Disabled : ~210 fps
(RIGHT) Fullbright Enabled : ~260fps


Of course, in normal gameplay the performance gap will be smaller. However, it can provide noticeable improvements in areas with huge amount of block/light updates, e.g. large scale farms that use pistons.
Compatible mods:
- Sodium
- Bad Optimizations
- ScalableLux
By default, fullbright is toggleable by using the key (G). It can be changed in the controls setting.
This mod is purely visual and does not affect any other game mechanics.
Dependencies (For versions >= 2.0.0)
Fabric Dependencies
Mod Menu is optional.
| Modrinth | Curseforge |
|---|---|
| Craft Config Lib | Craft Config Lib |
| Fabric API | Fabric API |
| Mod Menu | Mod Menu |
(Neo)Forge Dependencies
| Modrinth | Curseforge |
|---|---|
| Craft Config Lib | Craft Config Lib |
Available Versions
How to Install Optimized Fullbright on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "Optimized Fullbright". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2, 26.1.1, 26.1 (+19 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Optimized Fullbright server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.
Is Optimized Fullbright compatible with fabric and forge and neoforge?
Optimized Fullbright officially supports fabric, forge, neoforge for Minecraft 26.1.2, 26.1.1, 26.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Optimized Fullbright – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Optimized Fullbright consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Optimized Fullbright with just one click on your server.