Windows Evolve graphic glitch on retina iMac

Discussion in 'Mac and PC Games' started by Slux, Apr 5, 2015.

  1. Slux macrumors member


    Apr 27, 2010
    Hi, I'm getting a graphical glitch while playing Evolve on my retina iMac. Symptoms are a roughly rectangular patch of flickering black squares in the upper-right part of the screen.

    This only usually happens near the start of a game, lasts for maybe a minute and goes away. It may come back later on but usually does not.

    iMac specs:
    • Retina iMac 27"
    • 16GB RAM
    • AMD Radeon R9 M295X
    • Windows 7 Bootcamp

    Evolve graphics settings:
    • Full Screen
    • Resolution: 1920 x 1080
    • Anti-Aliasing: SMAA 1TX
    • VSYNC: 1 Frame
    • All Other Advanced Settings: Very High

    I've tried lowering the resolution, removing FSAA and VSYNC, but it still seems to occur.

    Is anyone else observing this behaviour? I can live with it, but I feel that I shouldn't have to.

    I considered changing from default Bootcamp AMD drivers to the official ones but a google search shows me that this is actually not as easy as it sounds and may cause problems with my system. But please let me know if you've had success with this.

    Thanks for any info.
  2. Slux thread starter macrumors member


    Apr 27, 2010
    So yeah, just bumping this.

    I am wondering if the lack of replies indicates that I am the only one with this problem? Can anyone confirm they have Evolve running on highest settings on retina iMac, glitch-free?
  3. TheBunny macrumors member

    Dec 12, 2013
    DC / Baltimore
    Being a graphics /game programmer...
    That really sounds like a driver bug of some kind.
    I have seen that happen with games I work on.
    Where the driver is basically getting confused about the graphics state.
    You get weird things like areas of the screen being blended with other areas or buffers not being cleared properly.
  4. Slux thread starter macrumors member


    Apr 27, 2010
    For what it's worth, the latest Apple graphics driver for retina iMac fixed this behaviour!
    So I guess it was a driver issue after all.

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