Basically what does f.lux do to my screen?

Discussion in 'Mac Basics and Help' started by XPcentric, Feb 1, 2013.

  1. XPcentric macrumors 6502

    Oct 16, 2008
    What characteristics of the display it changes to make it look more warm at night ?
  2. Quad5Ny macrumors 6502a


    Sep 13, 2009
    New York, USA
    Most likely it changes the values in your video cards Color LUT (Look-up-table). Changing the LUT is the same way ICC profiles are normally applied. The LUT change is temporary and is lost when the card looses power.
  3. altuixde macrumors member

    Dec 16, 2011
    If you're going to play a game on your computer, you may want to turn f.lux off temporarily. I found that it really lowers the frame rate of Tomb Raider Anniversary. f.lux probably affects other games too.
  4. XPcentric thread starter macrumors 6502

    Oct 16, 2008
    Do LED monitors have frame rate ??? I have an Alum 2008/2009 Macbook
  5. altuixde macrumors member

    Dec 16, 2011
    I have a late 2008 MacBook (aluminum) too, and I believe that the refresh rate is 60 Hz. I don't remember how I concluded that it's 60 Hz, though, because Apple doesn't provide that information. I believe that my PowerBook G3, iBook G3, and aluminum Cinema Display are also 60 Hz.

    Anyway, f.lux shouldn't slow you down if you're just doing things that are not graphically intensive, like the Finder and web browsing.

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