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Turning VSync On

Hi, so I have an issue with the game that I've packaged and tried on the PC's at my Uni, I'm getting a lot of frame tearing on them. After a little looking, I've found some helpful posts here and there about this but none that actually work, I think the code may vary from version to version of UE4 perhaps? for the record this is on 4.11.2

I was wondering how can I turn on VSync to stop this? preferable as a command line to type into the running game because I have a packaged version on the computers already. If not how can I turn it on in the editor and then repackage to have it on??

Thanks, Rob

Product Version: UE 4.11
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asked May 25 '16 at 04:29 PM in Packaging & Deployment

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Hi Rob,

You can do this a couple of ways:

Require repackaging:

  • You can repackage the game with a command run in the game level for r.vsync 1. Use the Execute Console Command node.

  • You can set the r.Vsync=1 console variable in the DefaultEngine.ini file IIRC under the rendering section.

Already Packaged Game:

I hope this helps.


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answered May 26 '16 at 03:17 PM

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Tim Hobson ♦♦ STAFF
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You can use the SetVSyncEnabled node instead of the console command: https://api.unrealengine.com/INT/BlueprintAPI/Settings/SetVSyncEnabled/index.html

You need to pass it the Game User Settings, you can obtain that using GetGameUserSettings: https://docs.unrealengine.com/en-US/BlueprintAPI/Settings/GetGameUserSettings/index.html

To actually make the change you need to call ApplySettings: http://api.unrealengine.com/INT/BlueprintAPI/Settings/ApplySettings/index.html

So you would write: GetGameUserSettings -> SetVSyncEnabled -> ApplySettings

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