iPhone maker Apple denied violating a court order governing its App Store and urged a California federal judge to reject a request by “Fortnite” developer Epic Games to hold it in contempt.
26.03.2024 - 00:47 / digitaltrends.com
If you’ve been playing PC games for a number of years, you’ve probably heard the term ‘VSync’ tossed around once or twice. Maybe you’ve also heard of G-Sync and FreeSync. For those unaware, VSync is actually short for ‘vertical synchronization’. This is a display feature that is designed to keep your gaming screen running in sync with your computer’s GPU. VSync isn’t just important for PC gaming, but it’s one of the most important criteria that goes into a good gaming display.
In this article, we’re going to take a closer look at VSync (and its related technologies) to find out exactly how it works, if you should have it enabled, and how to disable it if you don’t like the optimization.
VSync is a graphics technology designed to sync a game’s frame rate with the refresh rate of a gaming monitor. Originally pioneered by GPU manufacturers, this technology was introduced to address the issue of screen tearing, which occurs when your screen simultaneously presents portions of multiple frames. This can lead to visual artifacts resembling the example shown above, typically manifesting as a horizontal split in the display. Screen tearing arises when the monitor’s refresh rate (the frequency at which it updates per second) is not synchronized with the frames per second being produced by the graphics card.
Get your weekly teardown of the tech behind PC gaming Check your inbox! Privacy PolicyScreen tearing can occur at any time, though it is most prevalent during fast motion, particularly when a game runs at a higher frame rate than the monitor can handle or when the frame rate changes dramatically and the monitor can’t keep up. It is particularly noticeable during fast-paced games with vertical image elements, such as trees, entrances, or buildings. When this happens, those lines will quite clearly not line up correctly, which can break immersion and make a beautiful game look rather ugly.
VSync does a few things to help alleviate this. First, it limits the frame rate output by the graphics card to the monitor’s refresh rate (60Hz, unless you have a high-refresh-rate monitor), making it easier to avoid higher frames per second than the monitor can handle.
It does this by preventing the GPU from doing anything to the display memory until the monitor has concluded its current refresh cycle — effectively not feeding it any more information until it’s ready for it. Through a combination of double buffering and page flipping, VSync synchronizes the drawing of frames onto the display only when it has finished a refresh cycle, so you shouldn’t ever see tears when VSync is enabled.
VSync only helps with screen tearing, and it only really does that by limiting
iPhone maker Apple denied violating a court order governing its App Store and urged a California federal judge to reject a request by “Fortnite” developer Epic Games to hold it in contempt.
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