Fix Low FPS or Visual Glitches With Luca Eye Shader

Detailed shadows and rich lighting cost performance. If the game stutters or looks wrong, work through these steps before giving up on the pack.

Improve frame rate

1. Lower Render Distance in Options → Video Settings first. This usually gives the biggest gain.

2. In the shader menu, reduce shadow quality and shadow distance. Detailed, blurred shadows are one of this pack's heavier features.

3. If the pack has its own settings screen, turn down demanding effects one at a time and check your FPS after each change.

4. Close other heavy programs and make sure Minecraft is using your dedicated graphics card if your computer has one.

Fix visual problems

• World looks vanilla: the pack is not active. Reselect it in the Shader Packs menu and apply.
• Black screen or broken colors: switch shaders off, restart the game, then turn the pack back on. Make sure your loader matches your game version.
• Shadows flicker or shimmer: lower shadow distance slightly, or raise shadow quality if your hardware allows.
• Conflicts with resource packs: temporarily disable your resource packs in Options → Resource Packs to see if one of them is clashing with the shader.

If nothing helps, turn shaders off from the same menu to get back to normal play while you troubleshoot.