
Onion skinning is ananimation technique that allows an artist oreditor to view multiple frames at once. Originally used intraditional hand-drawn animation withtranslucent paper to compare adjacent drawings, it was later adopted in2D computer animation software to help animators create smooth and consistent motion across frames.
In traditional animation, the individualframes of a film were initially drawn on thinonionskin paper over a light source. The animators (mostlyinbetweeners) would put the previous and next drawings exactly beneath the working drawing, so that they could draw the 'in between' to give a smooth motion.
In modern computer software, this effect is achieved by making frames translucent and projecting them on top of each other.
This effect can also be used to createmotion blur, as seen inThe Matrix when characters dodge bullets.
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