60 FPS limit being ignored

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  • Sophie_M
    New Member
    • Jun 2022
    • 2

    #1

    60 FPS limit being ignored

    Hello everybody. I am writing this on behalf of my pop Bruce. He has some issues which make writing/spelling/grammar difficult for him so I am helping out and hope I get the terminology correct.

    Pop has been running a few ORTS installations on his Win10 machine for some time. The only difference in the installations is some clouds/weather/lighting so he can run trains in varying natural conditions. He's had the "automatically tune settings to keep performance level" box checked in the experimental tab to 60 FPS and all has been fine until a couple of days ago.

    We're not sure why, he's certainly not aware of having made any changes to either ORTS or elsewhere on his machine that would have impacted on the game, but his framerates are now jumping from the mid 200's back to around 40/50 then back up again depending on where he is looking from in the game. This is happening despite the 60 FPS box still being checked and this is causing some "stuttering" or very rough patches as the framerates jump up and down.

    We've tried a couple of things to fix the issue and finished up deleting his existing folders and downloading the latest version from the Open Rails website. Despite it also being set to 60 FPS, the game seems to be ignoring that and the framerates continue to jump up and down and cause some glitchy looking video.

    Pop had an older machine with MSTS and a few earlier versions of ORTS on it. The most recent was New Year MG (unofficial) 1.3.1 - 52 Rev. 19. (debug). On the old machine the 60 FPS limit is fine but when we copied that version over to the new computer, once again the 60 FPS limit was ignored.

    Has anyone experienced this before and if so, is there a solution to it please? Any assistance would be greatly appreciated.

    Many thanks
    Sophie
  • rdayt
    1000 Post Veteran

    • Nov 2007
    • 1291
    • SW MO
    • ORTS

    #2
    Under the OpenRails Options tab, make sure the vertical sync check box is checked.
    Vsync.JPG
    In the computer's video settings you'll see the refresh rate for the monitor(s).
    refresh.JPG
    This is the target rate OpenRails will try to hit. This is the Nvidia control panel and only useful if you have an Nvidia video card.
    You can also see this by right clicking on the desktop and clicking on Display settings and then Advanced display settings further down.
    dsktpvid.JPG
    Dispset.JPG
    Most current displays have a default of 60Hz. Some of the newer monitors have higher refresh rates. They're expensive.
    Hope this points you in the right direction.

    Randy

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    • Sophie_M
      New Member
      • Jun 2022
      • 2

      #3
      Thank you very much Randy! He must have accidentally unchecked the vertical sync box. The game is back to normal as is the smile on his face!

      Thank you
      Sophie

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