Optimized Fullbright

Optimized Fullbright

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

by
38.2K Downloads
fabricforgeneoforgegame-mechanicsoptimizationutility
Configure a Compatible Minecraft Server

Screenshots

Optimized Fullbright Screenshot 1
Optimized Fullbright Screenshot 2

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.

working example

Performance comparison

With a simulated lag machine designed to cause more light updates:

(LEFT) Fullbright Disabled : ~210 fps

‎(RIGHT) Fullbright Enabled : ~260fps

Alt textAlt text

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

Optimized Fullbright 2.0.0 Fabric 26.2release
MC 26.2fabric
June 17, 2026
Optimized Fullbright 2.0.0 Forge 1.20.1release
MC 1.20.1forge
May 30, 2026
Optimized Fullbright 2.0.0 Fabric 1.21.11release
MC 1.21.11fabric
May 30, 2026
Optimized Fullbright 2.0.0 Neoforge 1.21.11release
MC 1.21.11neoforge
May 30, 2026
Optimized Fullbright 2.0.0 Neoforge 26.1release
MC 26.1, 26.1.1, 26.1.2neoforge
May 30, 2026

How to Install Optimized Fullbright on Your Client

1

Install the Mod Loader Locally

Install fabric for your local Minecraft version.

2

Download the Matching File

Choose the Optimized Fullbright file for fabric and Minecraft 26.2.

3

Install Mod

Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.

Compatibility

Mod Loaders

fabricforgeneoforge

Minecraft Versions

26.2, 26.1.2, 26.1.1 (+20 more)

Server-side

Unsupported

Recommended 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.

Minecraft Server for Your Group

Optimized Fullbright stays on your client. Host a compatible world for your group.

Recommended RAM
4 GBfrom €5.2/mo
Minimum 3 GB | per 8 players
Create Server Now
Client Compatibility Guide
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Unsupported

Supported Versions

26.226.1.226.1.126.11.21.111.21.101.21.91.21.81.21.71.21.6+13 more