Organizing Minecraft Profiles for Shader Testing
Keep shader experiments separate from everyday worlds with clear profiles and configuration notes.

Use names that explain the setup
Name a profile with its game version, loader and purpose. A clear label is easier to recognize than a sequence of copies with nearly identical names. Keep a short text note inside the instance describing the renderer and shader pack.
Separate worlds from experiments
Copy a small test world into your shader profile. Keep your main survival world in its original profile until the new setup is stable. Remember that opening a world with a different mod list can change content beyond its appearance.
Save a working configuration
Once the setup works, make a backup while the game is closed. Record the shader preset and any manual changes. This gives you a practical recovery point before experimenting with another pack or updating components.