What Is Projection Mapping? A Complete Introduction

Projection mapping (also called video mapping or spatial augmented reality) is the technique of projecting video onto a three-dimensional surface so precisely that the image follows its shape. Instead of a flat rectangular screen, the "screen" is a cathedral facade, a car, a stage set or a sculpture. Windows, ledges and columns become part of the animation: they can glow, crumble, swing open or appear to breathe.

The technique has existed in simple forms since the 1960s — Disneyland's Haunted Mansion projected faces onto busts as early as 1969 — but it exploded in the 2000s, when bright digital projectors and affordable software made it possible for artists and studios everywhere. Today it is the signature art form of light festivals such as Fête des Lumières, Vivid Sydney and the Festival of Lights Berlin.

How projection mapping works

Every mapping project, from a tabletop sculpture to a 60-metre palace, follows the same logic:

1. Capture the surface. You need an accurate picture of what you are projecting onto — a photo-traced mapping template, a 3D model built from plans or photogrammetry, or a laser scan.
2. Create content to fit it. Designers animate on top of the template in tools like After Effects, Cinema 4D, Blender or real-time engines. Because the content is made for one specific surface, it "knows" where every edge is.
3. Position the projectors. The throw ratio of the lens and the size of the surface decide where projectors stand. Large facades usually need several projectors, edge-blended side by side or stacked for brightness.
4. Align and warp. Mapping software warps the output so it lands exactly on the real geometry and masks everything that should stay dark.
5. Play back and sync. A computer or media server plays the show, often locked to timecode with music, lights and lasers.

2D versus 3D mapping

2D mapping treats the surface as a set of flat shapes: you light up each window, outline the architecture, fill panels with colour and pattern. It is quick to produce and looks good from anywhere.

3D mapping uses a 3D model and a virtual camera placed at the audience's main viewpoint to render perspective illusions — stones falling out, a facade folding like paper, giant creatures climbing the walls. It is spectacular from the "sweet spot" and less convincing from the sides.

What equipment do you need?

• Projectors. For a small object indoors, a 3,000–5,000 lumen projector is enough. A medium facade at night typically needs 20,000–40,000 lumens; landmark shows use many 30,000-lumen laser projectors. Browse our projector database and the brightness calculator.
• Lenses. Installation projectors take interchangeable lenses — short-throw for tight streets, long-throw to project across a square. Check distances with the throw-distance calculator.
• Software. Beginner-friendly tools like HeavyM and MadMapper, VJ tools like Resolume Arena, node-based engines like TouchDesigner, and media servers like disguise for large shows. Compare them in our software guide.
• A computer with a capable GPU and enough outputs, plus signal distribution (HDMI, HDBaseT or SDI over long distances).
• Infrastructure for outdoor shows: a projection tower, weatherproof housings, power and permits.

Where you see projection mapping

• Light festivals: the largest public stage for mapping — explore our festival directory and calendar.
• Brand events and launches: cars, shoes and products "transform" in front of the audience.
• Theatre, opera and concerts: mapped sets replace painted scenery.
• Museums and immersive exhibitions: rooms entirely wrapped in projection, from teamLab to the Van Gogh experiences — see exhibitions.
• Permanent installations: nightly shows on castles, bridges and churches.

How to get started

Start small: a white box, a single projector and free or trial software. Map each face of the box, then animate simple colour fades. Next, try a corner of your room, a piece of furniture or a sculpture. Our DIY guide walks through a first project step by step. When you are ready for a facade, read how to plan a building projection.

FAQ

Is projection mapping the same as video mapping?

Yes. Both terms describe projecting video onto non-flat surfaces so the image fits their geometry. "Video mapping" is more common in Europe and in festival programmes.

How bright does a projector need to be for mapping?

It depends on surface size and ambient light. Indoors on a small object, 3,000–5,000 lumens can work; an outdoor facade usually needs tens of thousands of lumens. Use the brightness calculator to estimate for your case.

Can I do projection mapping with any projector?

Any projector can map small objects in a dark room. For larger work you want lens shift, interchangeable lenses, laser light sources and high brightness — the features of installation projectors.

Which software is best for beginners?

HeavyM and MadMapper are the most approachable for first projects; Resolume Arena suits VJs; TouchDesigner is powerful for interactive and generative work but has a steeper learning curve.