Lwjgl3ify Mod Wiki › FAQ
Lwjgl3ify Mod FAQ
10 questions players actually ask, answered.
Will this mod let me play old Minecraft versions on Java 17 or 21?
Yes, that's the main purpose of Lwjgl3ify Mod. It updates the rendering code in older versions like 1.7.10 and 1.12.2 so they work with modern Java versions instead of being stuck on old ones.
Do I need to install LWJGL3 separately?
No, the mod handles this automatically. Lwjgl3ify replaces the old graphics library code with LWJGL3 when you load the game, so you don't need to install anything extra.
Why is my game crashing with graphics errors even with this mod?
Some graphics crashes are fixed by Lwjgl3ify, but not all—it depends on your specific GPU and driver. Try updating your graphics drivers first, then check the config file to see if there are compatibility settings you can adjust.
How do I change my window size?
Edit the config file at config/lwjgl3ify.cfg and look for the window size settings, then restart your game for changes to take effect.
Does this mod make texture loading faster?
Yes, Lwjgl3ify significantly speeds up texture loading and can combine thousands of block textures almost instantly, which reduces stuttering when exploring new areas.
Can I use raw mouse input with this mod?
Yes, you can adjust raw mouse input settings in the config/lwjgl3ify.cfg file to enable or disable it based on your preference.
What Java arguments should I use when starting a server?
Use a command like: java -Xmx6G -Xms6G @java9args.txt -jar lwjgl3ify-forgePatches.jar nogui, adjusting the memory values (6G) based on your server's available RAM.
Will this mod work with other mods?
Lwjgl3ify is a core rendering mod that should be compatible with most other mods, but conflicts can happen with mods that also modify graphics or Java compatibility—test your modpack to be sure.
Does this mod improve performance on all computers?
Performance gains depend on your hardware and Java version, but most players see faster texture loading and more stable framerates, especially on modern systems.
Can I use this mod with the latest Java versions?
Yes, that's exactly what this mod enables—you can play old Minecraft versions with Java 17, 21, or other modern versions instead of being limited to Java 8.