Selecting the Pack in Video Settings
To use I Like Blu Shaders in-game, your client must be running a shader loader such as Iris or OptiFine, with the pack placed inside your game's shaderpacks folder. From the title screen or pause menu, open Options and select Video Settings. Open the Shaders or Shader Packs menu to view your available packs. Click I Like Blu Shaders in the list, apply the selection, and return to the game so the loader can compile the lighting effects.
Verifying the Fantasy Look
Once loaded into a world, step outside under an open sky to confirm the shader is working properly. You should immediately see cool blue tones across the environment, giving biomes and builds a distinct fantasy look. Check the ground around trees, mobs, and walls to verify that soft shadows are rendering smoothly instead of standard vanilla shading. Both daytime and nighttime scenes should show cleaner, semi-realistic lighting with cinematic visual touches. If the world still displays plain vanilla lighting, reopen the shader menu and verify that shaders are toggled on rather than set to off or internal rendering.