The short answer
FOOH, or fake out-of-home, is a short video in which CGI places an impossible advertising stunt into real phone footage of a real street: a handbag the size of a bus rolling through Paris, a mascara brush sweeping a London train. Nothing was installed. The clip is made for Instagram, TikTok and YouTube Shorts, and its power comes from the two or three seconds in which the viewer cannot tell whether it is real.
A brand-quality FOOH piece usually costs from the low thousands to the low tens of thousands of dollars. It is far cheaper than a real stunt, and it can go anywhere. The risk is not legal so much as reputational: audiences are tired of being fooled, and a fake that implies something untrue can turn the comments against you.
Where FOOH came from
The format took off in 2023. Jacquemus sent giant versions of its bags rolling through Paris streets. Maybelline gave London buses and Tube carriages enormous lashes and swept them with a giant mascara wand. The Barbie film's release brought life-size doll boxes and pink takeovers. Each clip looked like phone footage a passer-by might have shot, which was the point.
Since then the format has spread from fashion and beauty to cars, food and drink, sport and property. It has also been flooded by cheap AI-generated versions, which matters for how audiences receive it now.
Why FOOH spreads
A good FOOH clip exploits a moment of doubt. For a couple of seconds the brain cannot decide whether what it sees is real, and doubt holds attention better than spectacle alone. Then the comments fill with the argument: "is this real?", "this is CGI", "I was there yesterday and it wasn't". That argument is engagement, and the algorithm rewards it.
It also borrows the credibility of place. A product on a famous building feels like a big-budget campaign even when it was made by a small team in a few weeks. The same principle is behind the first three seconds of any short video: give the viewer something they cannot scroll past.
How a FOOH clip is made
- Shoot the plate. Real footage of a real place, usually handheld on a phone, deliberately a little imperfect. A tripod shot looks like an ad, a wobbly one looks like a witness.
- Track the camera. Software reconstructs the phone's movement so the CGI can sit in the scene and move with it.
- Model and animate. The product, character or object is built in 3D, often from existing product files.
- Match the light. Shadows, reflections, time of day and weather must agree with the footage. This is where most cheap FOOH gives itself away.
- Composite and grade. Everything is blended and graded to look like phone footage, including grain, compression and slight overexposure.
- Sound. Street noise and a reaction or two sell the scene more than any render setting.
AI video tools can now produce a rough FOOH clip from a prompt. They are useful for concepts. For brand work they still struggle with exact product geometry, readable logos and consistency across shots, which we discuss in AI video generators versus a motion studio.
What FOOH costs
| Level | Typical range | What you get |
|---|---|---|
| AI-assisted clip | A few hundred dollars | Fast, rough, variable quality, weak on product accuracy |
| Stock plate with CGI product | Low thousands | Existing footage, one object, limited animation |
| Custom shoot with detailed CGI | Mid thousands to tens of thousands | Location chosen for the idea, photoreal product, animation, sound, several cut-downs |
| Campaign series | Tens of thousands and up | Several cities or scenes, consistent assets, paid media versions |
These are indicative market ranges, not quotes. Realism, the number of shots, and revision rounds move the price more than length does. Compared with a real stunt or a landmark screen booking, even the top end is modest, which is why the format caught on.
When faking it backfires
FOOH depends on a small deception, and audiences have become sensitive to deception. It goes wrong in four ways.
- It implies a false claim. A skincare product erasing wrinkles in the clip, a property with a rooftop pool that is not in the plans, a store opening that is not happening. At that point it is not spectacle, it is a misleading ad, and advertising regulators such as the FTC in the US, the ASA in the UK and ASCI in India judge ads by the impression they leave.
- People travel to see it. If the clip suggests a real installation that fans will go looking for, the disappointment becomes the story.
- It looks cheap. Bad lighting and floating objects read as low effort, and low effort now reads as AI slop. Audience tolerance for obvious fakes has dropped, as we noted in AI content disclosure.
- The brand insists it was real. Denying CGI when viewers have already proven it turns a clever piece of craft into a lie.
The safe pattern is simple: make the stunt obviously impossible, make no claim about the product that the CGI invents, and label it as CGI in the caption. Platforms also have their own rules on realistic synthetic or altered content, which change often, so check them at the time of posting. Labelling costs nothing, and the "how did they do this" conversation survives it.
FOOH or a real 3D billboard?
Choose FOOH when the goal is social reach, when the idea needs a location you cannot book, or when the budget will not cover real media. Choose a real screen, such as a 3D anamorphic billboard, when you need to reach people in a specific city and want the credibility of having genuinely been there. Some campaigns do both: a real screen for the city, and a FOOH extension that takes the idea to places the budget could not reach.
A FOOH brief
- What is the single impossible image?
- Why this location, and would a local recognise it?
- Does the product appear accurately, and do we have a 3D model?
- What does the clip imply that is not true, and is any of it a claim?
- Which platforms, aspect ratios and lengths?
- How will it be labelled?
We build the 3D models and motion work that CGI clips depend on. If you have an idea you want to test, tell us the image you have in your head.