Put the summary of the bug you're having here

What I expected to happen was...:
The game opens and works

What actually happened was...:
I load into ANY world, singleplayer or realms, the map half-loads, then Java SE Binary crashes or something to that effect. The screen goes white and it takes me back to the Minecraft launcher. Have never had this happen before. Not sure what is going on. Computer has never had issues running the game. I have issues with screenshots on my computer, so i have copy-pasted the text from the crash-report given by the launcher, below.

Completely ignored arguments: [--nativeLauncherVersion, 301]
[12:32:04] [Client thread/INFO]: Setting user: QuilliamPenn
[12:32:07] [Client thread/INFO]: LWJGL Version: 2.9.4
[12:32:08] [Client thread/INFO]: Reloading ResourceManager: Default, PureBDcraft 64x MC19.zip, BDcraft Musics Pack.zip, BDcraft Sounds Pack.zip
[12:32:09] [Sound Library Loader/INFO]: Starting up SoundSystem...
[12:32:09] [Thread-5/INFO]: Initializing LWJGL OpenAL
[12:32:09] [Thread-5/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[12:32:10] [Thread-5/INFO]: OpenAL initialized.
[12:32:10] [Sound Library Loader/INFO]: Sound engine started
[12:32:12] [Client thread/INFO]: Created: 4096x2048 textures-atlas
[12:32:28] [Client thread/INFO]: Realms library version == 1.9.0
[12:32:28] MCO Compatability Checker #1/INFO: Realms is available for this user

Steps to Reproduce:
1. Start Minecraft,
2. Open a world
3. Instant-Crash