Mechanisms
for producing artificially created, two-dimensional images in
motion were demonstrated as early as the 1860s, with devices such
as the zoetrope and the praxinoscope. These machines were outgrowths
of simple optical devices (such as magic lanterns), and would
display sequences of still pictures at sufficient speed for the
images on the pictures to appear to be moving, a phenomenon called
persistence of vision. Naturally, the images needed to be carefully
designed to achieve the desired effect — and the underlying
principle became the basis for the development of film animation.
development
of celluloid film for still photography, it became possible to
directly capture objects in motion in real time. Early versions
of the technology sometimes required the viewer to look into a
special device to see the pictures development
of celluloid film for still photography, it became possible to
directly capture objects in motion in real time.