Kle's Render Layer Optimizer

Removes configured rendering layers to increase performance when rendering items, armor, weapons, etc.

16.3K Downloads

fabricmagicoptimizationutility

Configure a Compatible Minecraft Server

Screenshots

About this Mod

Kle's Render Layer Optimizer

Kle's Render Layer Optimizer looks to fix the issues of Minecraft's rendering layers on items and armor. Minecraft's rendering layer tanks your fps when many items or players are on your screen.

What are rendering layers and what kind of performance hit do they cause?

Rendering layers is Minecraft's system to break down how entities, items, and models are drawn for performance. These are the different rendering layers this mod looks to tackle:

glint
armor trim
pattern layers (banners, shields)
color layers (leather armor, tipped arrows, potions, etc)

Each layer is another thing for your gpu to draw, from testing, 10 enchanted helmets (1 layer each) drops your fps by 20-25 compared to 10 non-enchanted helmets.

Rendering Layers

What does this mod do at it's current state?

Right now it can only disable the glint layer from being rendered, this greatly improves performance on 1000 armor stands w/ enchanted armor from 36fps to 47fps (very unrealistic scenario) but it's only the start of what I'd like this mod to do. Forge, neoforge, and quilt will come in later updates as well as the other rendering layers.

examples of this mod in action:

(I chose 100 armor stands for these tests because 100 is a more daily occurance than 1000, only mods installed is what's required [no other optimization mods], works with all other optimization mods)

100 armor stands not-enchanted (baseline) - `291fps`

100 armor stands not-enchanted (baseline)

100 armor stands enchanted (mod not enabled) - `261fps`

100 armor stands enchanted (mod not enabled)

100 armor stands enchanted (mod enabled) - `293fps`

100 armor stands enchanted (mod enabled)

performance bugs this mod tackles:

toggles:

- Items:   fishing rod, books, tools (flint & steel, carrot on a stick, brush, compass, shears, etc.)
- Weapons: swords, tridents, bows, crossbows, axes, maces, and shields.
- Armor:   player/animal armor and elytra.
- Other:   all items that fall outside these categories (i.e. modded items, custom enchanted items like strength 5 dirt)

Requirements

Available Versions

v0.2.1release

MC 1.16.2, 1.16.3, 1.16.4, 1.16.5, 1.17, 1.17.1, 1.18, 1.18.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric

December 11, 2025

v0.2.0release

December 9, 2025

How to Install Kle's Render Layer Optimizer on Your Client

Install the Mod Loader Locally

Install fabric for your local Minecraft version.

Download the Matching File

Choose the Kle's Render Layer Optimizer file for fabric and Minecraft 1.21.11.

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11, 1.21.10, 1.21.9 (+30 more)

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Does Kle's Render Layer Optimizer need to be installed on the Minecraft server?

No. Modrinth marks Kle's Render Layer Optimizer 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 Kle's Render Layer Optimizer require?

Use a file for fabric and your exact Minecraft version. Supported versions include 1.21.11, 1.21.10, 1.21.9. Files for different loaders are not interchangeable.

Kle's Render Layer Optimizer 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.