Tutorials/Update LWJGL

[edit] What is LWJGL?

LWJGL is the LightWeight Java Game Library. Essentially, it is what Minecraft uses for graphics, sound, and input. The latest version of LWJGL is 2.9.0.

Mojang currently ships LWJGL 2.4.2 for Minecraft release 1.5.2 and below. Mojang plans to ship newer versions of LWJGL for the upcoming Minecraft release of 1.6.

[edit] Why update?

• Updating will fix some input bugs where keys seem to get stuck if you click at the same time. It also removes the "ghost" mouse pointer clicking.
• Some users report a performance increase upon updating.
• This can also potentially fix some issues regarding sound not working/cutting out.
• It has been reported to fix intermittent crashes on Windows.
• It has also been known to resolve the "cannot get JAWT interface" error for Mac users using Java 7.

[edit] Where to download

http://lwjgl.org/download.php

Select the latest stable release and download the lwjgl-X.X.X.zip. You should also backup your .minecraft folder before following the steps below. As a last resort, you can use the Minecraft Launcher's Force Update option to reset the files.

[edit] Notes

• With 2.8.1, on most 64 bit computers, the lwjgl64.dll update will cause a black screen crash. You can revert to the backup version you have saved if needed.
• Again on several 64 bit computers, the OpenAL64.dll update can cause a sound glitch that makes bursting sounds. Keep a backup in case you need to rollback.
• Version 2.8.5 generally breaks shift-clicking; 2.8.4 and 2.9.0 do not. You can change the url in your browser to access 2.8.4 or 2.9.0 rather than 2.8.5.
• LWJGL 2.8.5 has a bug which sends a false signal that the user released all currently pressed keyboard keys when a mouse button is pressed. That means that your building will be significantly slower. Do not update to this version if this bothers you.
  • This bug seems to be fixed when playing in fullscreen mode (Default F11), or updating to LWJGL 2.9.0.

[edit] What to replace

In the lwjgl-X.X.X.zip, there should be two folders, named jar and natives. You should replace the files in .minecraft/bin and .minecraft/bin/natives with the versions from the .zip.

The .minecraft folder's location varies by operating system.

[edit] All operating systems

You should replace these files in .minecraft/bin/

• jinput.jar
• lwjgl.jar
• lwjgl_util.jar

[edit] Windows

You should replace these files in .minecraft\bin\natives\

• jinput-dx8.dll
• jinput-dx8_64.dll
• jinput-raw.dll
• jinput-raw_64.dll
• lwjgl.dll
• lwjgl64.dll
• OpenAL32.dll
• OpenAL64.dll

[edit] Mac

You should replace these files in minecraft/bin/natives/

• libjinput-osx.jnilib
• liblwjgl.jnilib
• openal.dylib
• libopenal.dylib
  • For this one, create a copy of openal.dylib, then rename it to libopenal.dylib

[edit] GNU/Linux

You should replace these files in .minecraft/bin/natives/

• libjinput-linux.so
• libjinput-linux64.so
• liblwjgl.so
• liblwjgl64.so
• libopenal.so
• libopenal64.so

[edit] Resources

• All versions of LWJGL
• Video tutorial (GNU/Linux)
• Bash script to update LWJGL on GNU/Linux
• Multi platform LWJGL auto updater