Effects & Time

Fast Motion

Also called Undercranking

Footage plays back at a constant speed faster than real time so movement looks hurried or comic; unlike Time-Lapse it is just sped-up continuous footage, not frames sampled at long intervals.

Comedy, montage of routine tasks, quick process shots

Prompt

Replace [scene] with the shot and [duration] with how long it should take, then paste the prompt into your AI agent. Each prompt includes the name of the technique, so next time you can simply ask for it by name.

This is for a motion graphics video. Play [scene] in "Fast Motion" (also called undercranking).
Run the continuous footage at one constant speed, faster than real time, so the action looks hurried and a little comic but still flows smoothly — a time-lapse would skip long gaps between frames instead.
Fit the whole action into [duration] without changing speed along the way.

Replace [scene] with the shot and [duration] with how long it should take, then paste the prompt into your AI agent. Each prompt includes the name of the technique, so next time you can simply ask for it by name.