Author Topic: UseVerticalSync (Read 3688 times)

Kwang1imsa · « **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 · « **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 · « **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 · « **Reply #3 on:** July 05, 2011, 07:42:16 am »

It sleeps inside Display() until the monitor is ready to display a new frame.