
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 Client
Install the Mod Loader Locally
Install fabric for your local Minecraft version.
Download the Matching File
Choose the Optimized Fullbright file for fabric and Minecraft 26.2.
Install Mod
Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.
Compatibility
Mod Loaders
Minecraft Versions
26.2, 26.1.2, 26.1.1 (+20 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Does Optimized Fullbright need to be installed on the Minecraft server?
No. Modrinth marks Optimized Fullbright as unsupported on the server side. Install it only in your local Minecraft mods folder. Your server can remain unchanged unless the mod page lists an additional dependency.
Which version and loader does Optimized Fullbright require?
Use a file for fabric, forge, neoforge and your exact Minecraft version. Supported versions include 26.2, 26.1.2, 26.1.1. Files for different loaders are not interchangeable.
Optimized Fullbright is not working – what should I check?
First check the Minecraft version, loader version and required dependencies. Put the .jar file in your local .minecraft/mods folder and remove older duplicates. Because this mod is client-side, adding server RAM will not fix it.
Similar Mods
Minecraft Server for Your Group
Optimized Fullbright stays on your client. Host a compatible world for your group.