Forced Perspective
- Apparent size manipulation
- Perspective trick
Distance is used to make one thing look far larger or smaller than it is.
Opens a video model with the prompt in it. The price is on the page before you sign in.
What it is for
Two things at very different distances are staged so one looks enormous and the other tiny. Nothing is composited. The camera is simply told a lie about distance.
It survives inspection in a way a composite does not, because everything in frame was there at once, under one light, on one piece of film.
How it works
Both subjects sit on the same line from the lens, one close and one far, and the framing hides anything that would give the distance away. A floor running between them is the usual giveaway, so the shot removes it or breaks it up.
Deep focus is required, as the note says. Both planes have to be sharp, which means a small aperture and a lot of light, or a wider lens that carries more depth of field.
A wide lens exaggerates the effect, because it makes near objects large and far objects small faster than the eye does. A long lens compresses the two planes together and destroys the illusion entirely.
When to use it
Use it for size differences between characters, for a person interacting with something they could not really touch, and for gags built on scale.
Skip it when the camera has to move. The illusion only holds from one position, so a travelling camera pulls the two planes apart immediately.
Told apart from its neighbours
Tilt-shift throws most of the frame out of focus and leaves one narrow band sharp, which tricks the eye into reading a full-size scene as a model. Forced perspective keeps everything sharp and uses real distance to change apparent size.
The test is focus. Blur doing the work is tilt-shift. Sharpness everywhere and distance doing the work is forced perspective.
On film
The Lord of the Rings: The Fellowship of the Ring (2001) seats a hobbit and a wizard at the same table by putting them metres apart on a single sight line, with the set built to hide the gap and both planes held in focus.
- The Lord of the Rings: The Fellowship of the Ring (2001)
- Eternal Sunshine of the Spotless Mind (2004)
The prompt
Replace the blanks, keep the rest. Then run it on a video model.
forced perspective with <subject A> close to the lens appearing giant beside <subject B> far away appearing tiny, single sharp plane, no compositing
What goes wrong
Shallow focus arrives and one plane goes soft, which kills it. Ask for deep focus with both subjects sharp.
The second failure is two subjects at matched scale standing next to each other. Say one is close to the lens and appears giant, and the other is far away and appears tiny, on the same sight line.
Leave out
matched scale, shallow focus
Watch for
It needs deep focus. Any blur on either plane breaks the illusion.
Questions
Shoot it
Pay for the one run. No subscription, and the price is on the model page before you sign in.
Next to it in space that does not behave
