Troubleshoot Shader Issues and Visual Glitches

Common Shader Problems

If shaders appear broken, flickering, or cause crashes:

1. Verify shader selection: Return to Video Settings → Shaders and reselect your shader

2. Reload the world: Exit to menu and re-enter your world

3. Check compatibility: Ensure your graphics card supports shader rendering (most modern GPUs do)

4. Update drivers: Outdated graphics drivers often cause visual glitches

Performance-Related Issues

If a shader causes severe FPS drops or stuttering:

1. Switch to a lighter shader temporarily

2. Reduce Render Distance in video settings

3. Lower shader-specific settings if available

4. Allocate more RAM to Minecraft

Fallback Options

If shaders won't load:

1. Switch to Default (no shader) to confirm the game runs normally

2. Try a different included shader to isolate the problem

3. Verify the modpack installation is complete

The modpack is designed for stability across various systems. Most issues resolve through shader switching or standard video setting adjustments. If problems persist, check that your system meets minimum requirements for shader rendering.