CurseForge · Minecraft mod
Emberlens
Fork of Iris/Oculus with performance improvements and bug fixes
Quick answer
Which Emberlens release should I use?
emberlens-mc1.20.1-1.8.8.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Emberlens required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does emberlens-mc1.20.1-1.8.8.jar need?
emberlens-mc1.20.1-1.8.8.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Emberlens without breaking your instance.
Built for emberlens-mc1.20.1-1.8.8.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use emberlens-mc1.20.1-1.8.8.jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside emberlens-mc1.20.1-1.8.8.jar. It opens that exact file at the source.
About this project
What does Emberlens add?

Emberlens is a fork of Oculus. But less CPU work and garbage every frame, and unique features for further control etc.
Forge 1.20.1 | Client only | Requires Emberbium
Features

- Normally Create's moving parts use a slow CPU path as soon as you use a shader pack with it. Emberlens keeps Create's fast GPU rendering on with shaders, no patched shader packs or extra addons needed!
- Big factory with Solas shaders: 82 to whole 211 fps. Spinning parts don't show block-breaking cracks under shaders yet, I'll get to it.. :P

- New slider in Video Settings > General, under Max Shadow Distance. Redraw the shadow map every frame, or every 2, 3 or 4 frames.
- This might cause flickers with some shaders. I will be working on this mod more in the future to fix all weird issues of course.

- Found with a profiler, shader pack loaded, then fixed one by one: sampler unbinds, uniform uploads, matrix math, GPU memory barriers, tangents etc etc. All of them basically work better.
- Much less garbage per frame, which is what "stutters" are.

- The shader vertex format is handed to Emberbium once, through its own hook.
- That is why Emberlens needs Emberbium. It will not work on Embeddium or other forks.

- Emberlens still loads as
oculusand providesiris, so addons work just fine. - Your
oculus.propertiesand shader pack settings carry over too.
Benchmark

Measured with a profiler on the same modpack with a shader pack loaded, RX 9070 XT. These are separate play sessions, so don't trust them completely, your pc WILl perform differently.
Read!!
Install: remove Oculus, add Emberlens and Emberbium. Never run Emberlens and Oculus together.
Project description from CurseForge.
Pick your setup
Emberlens by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Emberlens versions and loaders
emberlens-mc1.20.1-1.8.8.jar
26 Oct 2026
emberlens-mc1.20.1-1.8.6.jar
23 Oct 2026
emberlens-mc1.20.1-1.8.5.jar
19 Oct 2026
emberlens-mc1.20.1-1.8.4.jar
11 Oct 2026
emberlens-mc1.20.1-1.8.3.jar
5 Oct 2026
emberlens-mc1.20.1-1.8.1.jar
1 Oct 2026
emberlens-mc1.20.1-1.8.1.jar
28 Sept 2026
emberlens-mc1.20.1-1.8.0.jar
9 Sept 2026
emberlens-mc1.20.1-1.8.0.jar
9 Sept 2026
Looking for an older file? The official CurseForge project page is in Resources.