FPS is Frame Per Second term used in all modern 3D & classical Animation films & Computer Applications Used to Animate them inside Computer Applications like Autodesk Maya, Adobe Flash to say the few,
I will write from my experience of using high FPS likes of 60 is real smart idea,
This is no smart guess that 60 FPS animation against 24 FPS animation is certainly more smoother, quicker, faster & refreshing to eye,
I also got one experience that whenever you animate in 60 FPS animation you get more space or keyframes i.e 60 Keyframes per second to animate than or 24 FPS which are only 24 Keyframes per seconds.
To just clear the terms, The Term ‘FPS’ is related to human’s vision’s characteristics i.e. Persistence of Vision
As Wikipedia says about persistence of vision
Persistence of vision is the phenomenon of the eye by which an afterimage is thought to persist for approximately one twenty-fifth of a second on the retina.
& This is what Wikipedia says about FPS
Frame rate (also known as frame frequency) is the frequency (rate) at which an imaging device produces unique consecutive images called frames. The term applies equally well to computer graphics, video cameras, film cameras, and motion capture systems. Frame rate is most often expressed in frames per second (FPS), and is also expressed in progressive scan monitors as hertz (Hz).
The human eye and its brain interface, the human visual system, can process 10 to 12 separate images per second, perceiving them individually. The visual cortex holds onto one image for about one-fifteenth of a second, so if another image is received during that period an illusion of continuity is created, allowing a sequence of still images to give the impression of motion.
So whichever more number that 24 FPS per movie will give viewers eye the feeling of smoother & faster animation without flickering.
This is only my experience & my personal thought, You experience of animating inside computer applications may be different than of mine.
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