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Author Topic: UseVerticalSync  (Read 3686 times)

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Kwang1imsa

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UseVerticalSync
« on: July 05, 2011, 04:02:27 am »
I have been wondering, what exactly does useverticalsync do?

Does it simply effect the frequency of SFML's Display() function or does it insert a sleep() do delay the entire while loop that contains the draw function?

JAssange

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UseVerticalSync
« Reply #1 on: July 05, 2011, 04:24:53 am »
It adds delays so that it won't draw faster than your screen can display. Without vertical sync you'll sometimes see tearing with multiple frames visible at once.

Kwang1imsa

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UseVerticalSync
« Reply #2 on: July 05, 2011, 05:49:22 am »
No, I know what VerticalSync is.

I mean, does it sleep the thread for any extra time between one draw time or another in the application's main while loop or what?

Laurent

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UseVerticalSync
« Reply #3 on: July 05, 2011, 07:42:16 am »
It sleeps inside Display() until the monitor is ready to display a new frame.
Laurent Gomila - SFML developer

 

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