[LudiusMaximus]

You could change every graphics settings variable separately. I used to do this to switch between different shadow settings via hotkey:

VER 3 000000000000003D "ShadLow" "INV_MISC_QUESTIONMARK"
/console graphicsSSAO 1
/console shadowMode 0
/console MSAAQuality 0,0
END

VER 3 0000000000000052 "ShadMed2" "INV_MISC_QUESTIONMARK"
/console graphicsSSAO 3
/console shadowMode 1
/console MSAAQuality 1.0
END

VER 3 0000000000000051 "ShadMed1" "INV_MISC_QUESTIONMARK"
/console graphicsSSAO 4
/console shadowMode 2
/console MSAAQuality 2.0
END

VER 3 000000000000002E "ShadHigh" "INV_MISC_QUESTIONMARK"
/console graphicsSSAO 5
/console shadowMode 3
/console MSAAQuality 3.0
END

You find your current variable settings (updated only after the game client is closed!) in the \World of Warcraft\_retail_\WTF\Config.wtf file.