When changing the video settings, the game updates these settings as soon as the button is pressed:
Graphics
Smooth Lighting
3D Anaglyph (this also reloads the resources)
GUI Scale
Clouds
Fullscreen
Mipmap Levels (this also reloads the resources)
VBOs
Render Distance
Max Framerate
View Bobbing
V-Sync
Alternate Blocks
Language (not a video setting, but is similar to one)
These settings do NOT update until the game is resumed:
Brightness
Particles
Resource Packs (update when pressing "Done")
The settings should either all update live or all update only when the game is resumed. Ideally video settings should not be live-updating.
Duplicate of MC-67257