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Thread: Moving camera is a unpleasant experience

  1. #1
    Basic Member Zirts's Avatar
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    Moving camera is a unpleasant experience

    Hi!

    So I am running Dota 2 with Ubuntu 14.04. Using Nvidia 337.12 drivers.

    My specs:

    4th gen i7
    Nvidia 760 GTX

    Also I am using a BenQ XL2411T 144Hz monitor.

    I have done fps_max 150 in dota 2 console that I could take the full use of my monitor.

    Also I have disabled V-sync to get full use of my monitor.

    Now the problem is that when I play the game, moving my camera feels really bad. There is a lot of graphical tearing when doing it. Also it feels a bit slow or choppy. But when moving camera, my dota FPS is a constant 150. So there is no FPS lag involved here. It is just something to do with moving the camera. I dont know if it is about the 144 Hz or not.

    Any similar experiences of some info would be appreciated. I am getting really bad feeling when playing Dota on linux. It's the feeling you get when you feel sick in a car or play FPS games on too low FoV.

  2. #2
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    Edge panning was extremely jittery for me too until I lowered the camera speed and put the acceleration to zero. (Settings, Game, Interface). I'm not sure if its a discrepancy with windows but even with a very low camera speed, scrolling is fast enough to follow hero movement.
    Last edited by hirsute; 04-21-2014 at 12:31 PM.

  3. #3
    Basic Member Zirts's Avatar
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    Hmm.. Okay I will give it a show and report back then!

    EDIT: It isnt so bad for my head anymore but it is still awful, when moving the camera, there is like some ripple going torugh the image every time I move it. I don't know what they call it? Screen tearing or something?
    Last edited by Zirts; 04-21-2014 at 03:53 PM.

  4. #4
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    Well, the way to remove screen tearing is to enable V-Sync.

  5. #5
    Basic Member Zirts's Avatar
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    But that would remove the point of having a 144 Hz monitor..

    Edit: but yes, it is pretty pleasant on Windows when I tried it but on Linux it has that problem for some reason. And I dont know why...

  6. #6
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    I have no idea why you'd think that. V-Sync merely synchronises the gpu with monitor updates. If your monitor is actually running at 144Hz V-Sync will bound dota to rendering at 144fps.

  7. #7
    Basic Member Zirts's Avatar
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    Well do you have a 144 Hz monitor? If you turn v-sync on it feels like 60 Hz all over again, if you turn it off, it's a whole different world. That is because v-sync stops the FPS at 60 while when it is off, it will go beyond 150.

  8. #8
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    No.

    Just no.

    That's not what V-Sync does.

    If turning V-Sync on makes dota run at 60fps that means your monitor is currently running at 60Hz.

    run xrandr in a console, what does it say ?

  9. #9
    Basic Member Zirts's Avatar
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    But how come on windows when the screen refresh rate is set to 144 Hz, turning off V-sync will pull the FPS down to 60 on every game? And if you google around, every source will tell you to turn off v-sync to get the maximum out of a 120 Hz + monitor, because you need more than 60 FPS for it.

  10. #10
    Basic Member Zirts's Avatar
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    Okay, here is the output of xrandr:

    Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16384
    DVI-I-0 disconnected (normal left inverted right x axis y axis)
    DVI-I-1 disconnected (normal left inverted right x axis y axis)
    HDMI-0 disconnected (normal left inverted right x axis y axis)
    DP-0 disconnected (normal left inverted right x axis y axis)
    DVI-D-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 298mm
    1920x1080 60.0+ 144.0* 120.0 99.9
    1440x900 119.9
    1280x1024 120.0 75.0 60.0
    1024x768 120.0 75.0 60.0
    800x600 120.0 75.0 60.3
    640x480 120.0 75.0 59.9
    DP-1 disconnected (normal left inverted right x axis y axis)

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