Base-Shader
This shader pack for Iris replicates all vanilla visual effects with maximum accuracy from the original Minecraft version.

This pack can serve two purposes: as a ready-to-use solution for playing with classic graphics or as a foundation for creating your own shaders with additional settings.
In the current version 1.0, you can disable entity shading and fog through the shader menu. By editing the shader.properties file with a text editor, users gain the ability to disable vignetting and directional lighting.

The 1.0 version hasn't yet undergone comprehensive testing of all game features - currently, only constantly visible effects like fog and lighting are working correctly.