The first rotoscope device,
1917:
Left, Max Fleischer's patent drawing, Oct 9, 1917
Max Fleischer's (creator of Betty Boop, Popeye)
rotoscope consisted of a drawing board, fitted with a piece of frosted
glass, and a motion picture projector mounted underneath that magnified
a single frame of motion picture film onto the glass. When the figure
on one frame had been traced onto translucent paper, a crank advanced
the film to the next frame. Twenty years later Walt Disney used a
rotoscope to aid in the drawing of "Snow White".
