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Fundamentally, a core goal in rendering is for each frame displayed on the monitor to present a single, coherent image. There are several different strategies which are, or were, used in order to achieve this. In the following, I mention "vsync". Vsync is the moment at which the monitor begins drawing a new screen image; it's the point at which "vblank" ...


The tearing you're talking about is caused by sending data to the monitor at a different rate than it refreshes. If it's a 60 Hz monitor and you're updating at 80 fps, you can get tearing. But that happens and can be fixed with vsync whether you're using a back buffer or not. A back buffer is just used because pushing to the monitor is slow, especially if ...

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