PCDiga - Gozar com o cliente

Boa tarde,

Cara Teresa, na sua visita a nossa loja hoje, 9 de Janeiro, foi possível analisar em conjunto a anomalia que referia, tendo sido explicada o porque de a mesma acontecer.
O "tearing" de que se queixam na imagem, é um fenómeno normal, quando o output de fps's da gráfica é superior ao monitor utilizado, que fica solucionado ao activar a opção Vsync.
Foi também aconselhado, que deve sempre fazer atualizações dos drivers gráficos, que estão em constante desenvolvimento e solucionam problemas em jogos mais recentes.
Segue abaixo explicação detalhada, que poderá encontrar em vários sites que explicam como funciona o Refresh Rate nos monitores e gráficas.

""Screen tearing occurs because the graphics card sends frames to the monitor faster (or indeed slower) than it can output them (i.e. your frame rate is higher/lower than your monitor's refresh rate). So before the monitor finishes "drawing" a frame, the graphics card sends it another one. The monitor then stops drawing the previous frame and continues to fill the rest of the screen with the next frame, so you see half of one frame and half of another

Turning Vsync on synchronises the output of the graphics card and monitor. The card doesn't send the next frame to the monitor until the monitor is ready to "draw" it. This means your fps doesn't go higher than your refresh rate.

However, this can have a potentially huge performance hit. If the frame rate drops below your refresh rate, the two have gone out of sync. This means the monitor has started drawing the next frame before the graphics card finished rendering it. Before the graphics card can output it, it has to wait for the monitor to be ready for it again. So the graphics card rejects that frame without sending it to the monitor, and draws another one. but once again the monitor could start drawing the next frame before the graphics card finishes working on that one, in which case it has to throw away that frame as well without outputting it, and start on the next one. And so on.

To alleviate this performance hit, you can turn on triple buffering, which tells the graphics card to prepare more frames to be sent to the monitor. This means that it can "queue up" more frames for the monitor, so that when the monitor is ready, it can output the appropriate frame. This seems like the ideal solution, but this can induce input lag, and it uses more graphics memory.

You should only really enable Vsync if your frame rate is already above your refresh rate.

So...
No Vsync = optimal performance and consistent frame rate, but screen tearing.
Vsync = no screen tearing, but potentially a massive performance hit & inconsistent frame rate.
Vsync + triple buffering = no screen tearing, lesser performance hit & more consistent frame rate, but uses more VRAM and possibility of input lag.""

Com os nossos melhores Cumprimentos.