Choose either Iris (recommended for performance) or OptiFine .
A reliable community alternative for BSL Shaders on Modrinth .
You cannot run shaders on "Vanilla" Minecraft alone; you need a shader-compatible mod loader.
Click the Open Shader Pack Folder button and move your BSL .zip file into that window.
To ensure you are downloading a safe version, use the official developer pages:
so you want to get BSL shaders and honestly. I don't blame you it is by far one of the best shaders packs out there in my opinion. YouTube·The Breakdown How to Download & Install BSL SHADERS for Minecraft 1.21.7