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Optimized Fullbright project artwork

CurseForge · Minecraft mod

Optimized Fullbright

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

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Optimized Fullbright release should I use?

Updated 3 days ago
Latest stable file 2.0.0+26.2-fabric
Game version 26.2, 26.3
Loader Fabric

Optimized Fullbright 2.0.0+26.2-fabric targets 26.2, 26.3 with Fabric. It must be installed on the client. Do not install it on the dedicated server. All 2 required mods have matching files.

Where it goes

Is Optimized Fullbright required on the client, server, or both?

It must be installed on the client. Do not install it on the dedicated server.

Client Required
Dedicated server Not supported
Loader for this release Fabric
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

This file is marked client-only.

What else does Optimized Fullbright 2.0.0+26.2-fabric need?

2.0.0+26.2-fabric. Change the file and its required mods may change too.

All 2 required mods have matching files

Install Craft Config Lib, Fabric API first. We found matching files for this game-version and loader setup.

Craft Config Lib Needed by Optimized Fullbright 2.0.0+26.2-fabric
required
Matching file found Matched file: 1.1.13+26.3-fabric
Fabric API Needed by Optimized Fullbright 2.0.0+26.2-fabric
required
Matching file found Matched file: 0.161.0+26.3

We only count dependency files that match this setup. A file for another loader does not fill the gap.

Before you install it

Add Optimized Fullbright without breaking your instance.

Built for Optimized Fullbright 2.0.0+26.2-fabric. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use 2.0.0+26.2-fabric. It targets 26.2, 26.3 with Fabric; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    Install Craft Config Lib, Fabric API first. We found matching files for this game-version and loader setup.

  3. 03

    Put it on the correct side

    It must be installed on the client. Do not install it on the dedicated server.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside 2.0.0+26.2-fabric. It opens that exact file at the source.

About this project

What does Optimized Fullbright add?

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

Project description from CurseForge.

Pick your setup

Optimized Fullbright by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

70 available setups

Showing the newest 12 of 37 game versions. Older files are in the list below.

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

Optimized Fullbright versions and loaders

36 of 36 releases match

Looking for an older file? The official CurseForge project page is in Resources.