CurseForge · Minecraft mod
opal Shaders
A shader pack loader for Vulkan and OpenGL.
Quick answer
Which opal Shaders release should I use?
opal Shaders opal-fabric-1.21.1-1.0.0-alpha.7.jar targets 1.21.1 with Fabric, Quilt. The project page does not say whether this file belongs on the client, dedicated server, or both. All 2 required mods have matching files.
Where it goes
Is opal Shaders 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 opal Shaders opal-fabric-1.21.1-1.0.0-alpha.7.jar need?
opal-fabric-1.21.1-1.0.0-alpha.7.jar. Change the file and its required mods may change too.
Install Vectors, LibLibLib first. We found matching files for this game-version and loader setup. 1 comes through another mod in the chain.
1 extra mod was pulled in by another dependency. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add opal Shaders without breaking your instance.
Built for opal Shaders opal-fabric-1.21.1-1.0.0-alpha.7.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use opal-fabric-1.21.1-1.0.0-alpha.7.jar. It targets 1.21.1 with Fabric, Quilt; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Vectors, LibLibLib first. We found matching files for this game-version and loader setup. 1 comes through another mod in the chain.
- 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 opal-fabric-1.21.1-1.0.0-alpha.7.jar. It opens that exact file at the source.
About this project
What does opal Shaders add?
Opal is a shader loader mod. It's its own engine, and it loads normal OptiFine/Iris shader packs. You don't need to edit anything, just drop a pack in and pick it.
The main goal is more and MORE FPS. In my tests it beat Iris on most packs, but it depends on the pack and your PC.
What it does
- Runs on Vulkan and OpenGL (Vulkan is usually faster)
- Has its own shader screens for packs and settings
- Supports packs that use custom images, like rt and PathMax
- Fixes shader problems at the engine level, not per pack
What you need
- Minecraft 26.3
- Fabric Loader and Fabric API
- Vectors Mod
- Java 25
Good to know
- This is an alpha, so expect bugs. Please report them with the pack name and your log
- Don't use it with Iris, only one shader mod at a time.
- Works with Vectors for more FPS.
- Packs with compute shaders can be missing some effects, and some packs still look a bit different from Iris
Project description from CurseForge.
Pick your setup
opal Shaders by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.3
1 loader build26.2
1 loader build26.1.2
1 loader build26.1.1
1 loader build26.1
1 loader build1.21.1
4 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
opal Shaders versions and loaders
opal-fabric-1.21.1-1.0.0-alpha.7.jar
1 Nov 2026
opal-fabric-26.3-1.0.0-alpha.7.jar
1 Nov 2026
opal-forge-1.21.1-1.0.0-alpha.7.jar
1 Nov 2026
opal-neoforge-1.21.1-1.0.0-alpha.7.jar
1 Nov 2026
opal-fabric-26.1.x-1.0.0-alpha.7.jar
31 Oct 2026
opal-fabric-26.2-1.0.0-alpha.7.jar
31 Oct 2026
opal-fabric-26.3-1.0.0-alpha.7.jar
31 Oct 2026
opal 1.0.0 a.7
opal-fabric-26.3-1.0.0-alpha.7.jar
31 Oct 2026
Looking for an older file? The official CurseForge project page is in Resources.

