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How to avoid big lag spike when alt-tabbing out/in of engine

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    How to avoid big lag spike when alt-tabbing out/in of engine

    It is quite jarring how impactful on fps it is to alt-tab out and in of the game.

    As a follow-up question, anyone know how to trigger borderless window from unrealscript (which may avoid this issue altogether)?

    #2
    you mean windowed mode? because fullscreen applications have always caused issues when alt-tabbing. if you mean windowed I don't really have such issues
    borderless does not exist in UDK btw
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    Local Image-Based Lighting for UE4

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      #3
      I've never seen a UDK or UE3 game run in a borderless window. I'm not saying it can't be done. I just haven't seen it.
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        #4
        This is Chivalry forum post that explains how to do using launch params: https://steamcommunity.com/app/21964...9719215464360/

        Just wondering how this achievable through unrealscript.

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          #5
          did you actually get that to work in UDK?
          I'm pretty sure Chivalry implemented it themselves in the engine. we did the same at work in our old UE3 project
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          Developer of Elium - Prison Escape
          Local Image-Based Lighting for UE4

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