Affects Version/s: Minecraft 13w39a
Fix Version/s: None
Environment:Mac OS X
What I expected to happen was...:
I would get a shader applied to my world
What actually happened was...:
My screen went black and my cursor was not working at all until I quit minecraft (using command-Q).
Steps to Reproduce:
1. go into a world
2. go to "super secret settings"
3. click it a few times