Put the summary of the bug you're having here

What I expected to happen was...:
Be able to look at water.

What actually happened was...:
Texture spazzing across all local blocks
https://www.youtube.com/watch?v=7fKdn8zkZw4
Video on last snapshot but still present on this one, could re-create video showing this if needed.

Steps to Reproduce:
1. Load minecraft.
2. Load world.
3. Look at water at certain angles.
4. Damn near have another seizure.