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VSYNC (or V-sync) is shortform for Vertical synchronization.

In video games, if you rapidly turn around, you will experience a phenomenon called 'screen tearing'.

Imagine a pole in the game, and if you turn quickly, instead of the entire pole moving past your field of view, only the lower or upper half moves, while the other half stays there for a split second, and then moves away as well.

This phenomenon is caused if your graphic card is working faster than the refresh rate of your monitor.

Turning VSYNC on tells the graphic card to not produce updated imagery (frames) any faster than your monitor's screen rate (usually 60 - 75Hz; 120 Hz if you're a rich kid or still have a CRT, lol)

...thereby "dropping" the frames down to whatever your monitor's maximum display rate is, eliminating the screen tearing.
Yo this screen tearin's making me crazy dawg, better turn on the VSYNC.
by Sir Arun August 22, 2011
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Jul 26 Word of the Day
Noun: a friend who is usually only called upon by a friend when a more primary/prominent friend is unavailable.

Taken from the term “second string” in an athletic competition situation. In football, if the star quarterback gets injured during a play, the second string is called off the bench to replace him/her. A “Second String Friend” is essentially benched until needed, if ever.

Synonyms: Plan B, Second Choice, Secondary Friend, Benched Until Needed
I got a call from X the other night. She had an extra ticket to a concert she bought for a friend, but they couldn’t make it so she called me to ask if I wanted to go because I am her Second String Friend.
by Deus-ex-machina August 26, 2020
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