Stop-motion with real actors instead of puppets—frame-by-frame capture of performer positions creates jerky motion. Norman McLaren's signature technique.
You film an actor, have them assume a position, take a single frame, they move minimally further — and you have pixilation. Not animation in the classic sense, but stop-motion with real people. The effect: movements appear jerky, supernatural, almost mechanical. The character seems detached from their own body, jumping through space rather than walking. Norman McLaren perfected this technique in the 1950s, but its roots go back further. On set, it works simply: actor poses, camera takes a picture, actor moves a few centimeters or degrees, next picture. At 24fps, you need about 12–15 frames for one second of natural movement; for pixilation, 4–8 are often sufficient, depending on how jerky you want it to be.
The biggest challenge lies in consistency. Lighting must remain absolutely stable — any fluctuation becomes visible. Camera positions must not drift. Therefore, you work with a tripod, marked floor positions for the performers, and precise notebook entries. For longer productions, it gets tricky: an actor who is supposed to assume the same pose repeatedly for hours will fall into automatisms or get tired — you can see that. Some DoPs film pixilation sequences in several short takes rather than continuously.
In the edit, pixilation is already finished — it's not a digital effect, but a camera technique. You simply cut the takes together. But timing is critical here: cut too fast, it looks epileptic; too slow, the effect gets lost. The frame rate during export also plays a role — some projects work better at 12fps, not at standard 24fps.
Practically, pixilation is used less today than it used to be, because motion control and digital animation have simplified many things. But as an in-camera effect, it has a raw appeal that no plugin can replicate — the physicality, the real weight of the person in the frame. It works well for sequences dealing with disorientation, dreams, or chaos. Those who work with it think from an editing perspective: how long can the pixilation hold attention before it becomes boring?