Welcome...

…to the Iris docs!

Iris is a shader loader that is integrated with Sodium, with support for modern shaders, built from the ground up for ease of use. Whether you’re new to shader development, want to migrate your shaderpack from Optifine, or just need a refresher on what Iris can do, you can find everything you need to know right here.

If you can’t find what you are looking for, reach out to us on the Iris Discord.

If you’re feeling a bit lost, why don’t you have a look at the items below.

Quick Reference

Programs The shader programs you can create, and what order they run in.

Uniforms Values available to all programs.

Attributes Per-vertex data available only in the vertex shader.

Feature Flags Query the activation state of certain Iris exclusive features.