the.com/motion blur
the smear that proves something was actually alive a moment ago.
means the streaking effect that happens when an object moves across a frame faster than the shutter can freeze it.
from born from photography, where a slow shutter speed lets light from a moving subject paint itself across multiple positions on the film before the exposure closes; games and CGI later faked the same math on purpose.
shutter angle180 degrees mimics natural human eye blur
video gamesoften faked, real cameras give it free
peter jackson rulehobbit's high frame rate killed the blur, felt fake
for instance
saving private ryan — spielberg used 90-degree shutter for jittery combat realism, 1998
the matrix bullet time — 1999 rig froze motion while blur told the eye time still moved
nba jam replays — arcade sprites smeared to sell speed on cheap hardware, 1993