Glossary · Camera & motion
Parallax animation
Parallax animation creates a sense of depth in a flat picture by splitting it into layers and moving the near layers faster than the far ones.
Why it matters
It turns a single still image, such as an old photograph or an illustration, into something that feels like a camera moving through a real place.
Look out of a moving train: nearby fence posts rush past while distant hills barely move. Parallax animation borrows that everyday cue. A picture is separated into foreground, middle and background, and each layer moves at its own speed.
It is common in documentaries that animate old photographs, and in explainers built from illustrations. The people and objects in the picture stay as they were; only the sense of space around them changes.
It can go wrong. When a layer slides, the area that was hidden behind it shows, so that gap has to be filled in, and on a historical photograph the fill should stay plain rather than add invented detail. If the speeds differ too much, people start to look like cardboard cut-outs.
A 1920s photograph of a family outside their new shop is split into three layers: the family in front, the shopfront behind them and the street beyond. During a slow sideways move the family shifts the most and the street the least.
Last reviewed 15 October 2026.