Quote:
Originally Posted by TheDarkWraith
Why do people think they have a problem if they see FPS drop? You do not have any problems if your FPS stays above 30. 30 fps is what the human mind perceives as fluid motion.
Be thankful you can keep the FPS greater than 30. Anything more is overkill and not needed.
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Actually, if you're v-synced to 60 fps, you'll notice a drop to 40 as brief screen tear, just as the OP did. The eye most definitely notices when the frame rate drops below 60 - I certainly do - because your smooth frame rate 'jumps' as v-sync skips the torn frame and replaces it with the next one.
The idea that 30 frames is all you need is a legacy of the slower frame rates used in film-making (which is about 25 fps if memory serves, could be wrong though) - the eye perceives quite a bit more than that, especially in terms of variation in perceived motion, and it's better to think of 30 fps being the
bare minimum that can still maintain a reasonable facsimile of real vision. It's especially noticeable if you use stuff like TrackIR.
The reason 60 has become the 'standard' value is simply that most hi-def monitors have 60hz refresh rates, and therefore 60 fps with v-sync activated (because v-sync fixes the framerate to your refresh rate) has become the norm as the technology has become more common.
