Oculus

Oculus is a performance mod created by Asek3. A Forge port of Iris Shaders enabling OptiFine shader packs to work alongside Embeddium for shaders on Forge. As a performance mod it concentrates on frame rate, loading times, and memory use, and it has been downloaded around 20 million times, which puts it among the options players reach for in this space.

Oculus is built for Forge players using Embeddium who want shader-pack support. Oculus is a Forge port of Iris that loads shader packs on top of Embeddium, bringing modern lighting to the Forge ecosystem. It is approachable enough to drop into a world and use right away, with little setup required.

The mod is available for Forge and NeoForge, so it fits a range of modpacks and launchers. It currently targets Minecraft 1.20.1. It is a client-side mod, which means you can add it to your own game for personal benefit even when the server you join does not run it.

Oculus works particularly well alongside Embeddium. It depends on Embeddium, so those must be present and on the same loader and version. It targets the Forge side of the ecosystem, so it fits comfortably into Forge and NeoForge packs.

As a performance mod, Oculus is meant to improve how the game runs rather than change gameplay, so it is generally safe to combine with other optimisation mods.

If you are comparing options, similar mods include OptiFine (built-in shaders) and Iris (on Fabric). They cover comparable ground, so the right choice usually comes down to your loader, version, and the rest of your pack.