Imgix APIsVideo APIFillFill Image Motion Amount

Fill Image Motion Amount

fill-image-motion-amount

Controls the intensity of the fill-image-motion effect — how far the zoom or pan travels over the duration of the clip.

fill-image-motion-amount accepts a float between 0.05 and 1.0. The default is 0.2.

How amount affects zoom vs. pan

For zoom motions, the amount sets the end scale: a value of 0.2 means the image moves from 1.0× to 1.2× (or the reverse for zoomout). For pan motions, the image is held at 1 + amount zoom to create the travel room, and the amount determines how far the frame glides across it.

RangeFeel
0.050.15Subtle drift, barely perceptible
0.10.2Tasteful, cinematic (default range)
0.20.35Noticeable, clear sense of movement
0.4+Dramatic, strong motion

Deep zooms (0.4+) magnify a shrinking region of the source image. A small source will soften as the zoom deepens — for the best result, supply a background image at least as large as your output canvas, ideally larger.