Optimum Realism Troubleshooting

1. Open your game launcher
2. Go to Installations and click your profile
3. Click More Options
4. In JVM Arguments, find -Xmx2G
5. Change it to -Xmx4G or -Xmx6G (4-6 GB recommended)
6. Save and launch the game

1. Check your shader's page for the latest version
2. Download the updated .zip shader file
3. Place it in .minecraft/shaderpacks/
4. Remove or rename the old shader file
5. Restart the game and select the new shader

Recommended shaders: BSL, Complementary, Kappa, SEUS PTGI HRR 2.1

1. Remove the current pack from .minecraft/resourcepacks/
2. Clear your browser download cache
3. Re-download from your Patreon or the official website
4. Place the fresh .zip in .minecraft/resourcepacks/
5. Enable it in-game and restart

Do not extract the zip -- the game reads it directly.

If you use Iris + Fabric, these mods are needed for the full experience:

1. Iris — shader support (Modrinth)
2. Sodium — performance optimization (Modrinth)
3. Continuity — connected textures (Modrinth)
4. Polytone — custom sounds (Modrinth)
5. Entity Model Features (EMF) — custom entity models (Modrinth)
6. Entity Texture Features (ETF) — custom entity textures (Modrinth)
7. CIT Resewn — custom item textures (Modrinth)

Download each .jar and place it in .minecraft/mods/. Make sure Fabric API is also installed. If you use OptiFine, all these features are built-in.