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What is video mapping? A complete guide

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Video mapping, often referred to as architectural projection, is revolutionizing the way we perceive our environment. It’s an innovative technique that transforms any surface, whether a monument or a simple wall, into a living, interactive medium.

Using this approach, video or moving image projections create striking illusions, transforming the ordinary into a spectacular, immersive visual experience. Video mapping has become a powerful tool for magnifying architecture and captivating audiences at shows and cultural events.

What is video mapping?

Video mapping is a projection technique that uses the shape and volume of an object as a canvas for visual animations. Unlike conventional projection, the aim here is to adjust the images so that they perfectly match the surface of the projected object, be it a building, a sculpture or any other 3D support. This creates a striking optical illusion, giving the impression that the object is coming to life or transforming itself. Used in sectors as diverse as contemporary art, entertainment and advertising, this technology offers a new visual language for telling stories or reinforcing a visual message.

Did you know? The first mass-market video mapping show took place in 1969, when Disneyland’s “Haunted Mansion” attraction used projections on busts to create animated faces!

How does video mapping work?

In the simplest cases, the process can begin directly on site, by projecting onto the surface, or by taking photos for reference. For more complex projects, it begins with a precise 3D scan of the target surface. Once this model has been created, graphic artists and animators design visuals that perfectly match the contours and shapes of the object or building. These animations are then projected using powerful video projectors, often synchronized to cover vast areas with precision.
The result? Spectacular effects that captivate the eye and add a new dimension to the object.

As video mapping artist Jane Doe points out: “Video mapping isn’t just about projecting images; it’s about creating a new reality by merging the physical and digital worlds.”

How to do video mapping: a practical guide

Video mapping may seem complex, but with the right tools and a methodical approach, it becomes accessible to anyone who wants to transform their environment into a total immersion experience.
This practical guide takes you step-by-step through a video mapping project, from preparation to final projection.

Step 1: Preparation

La première étape dans la réalisation d’un projet de mapping vidéo consiste à bien préparer son projet en amont. C’est une phase essentielle qui détermine la qualité et la fluidité de la projection.

The first step in realizing a projection mapping project is to prepare it thoroughly in advance. It’s an essential phase that determines the quality and fluidity of the projection.

Choosing the projection surface

  • Identifying the right surface: Choosing the right surface for projection is crucial. It could be a building, a sculpture, a wall or even a moving object. If you have a choice, flat surfaces are easier to project for starters. On more ambitious projects, irregular or complex surfaces will add a more captivating dimension to the project.
  • Analyze the environment: Consider the projection environment, including ambient lighting (natural or artificial light), available space and potential obstacles (trees, street furniture). Make a plan of the installation. This will help you to think about all the necessary elements and their placement. Trees can be an obstacle to the positioning of your video projectors, for example.
  • Consider the weather conditions (if mapping outdoors): Wind, rain or humidity can have an impact on equipment and projection quality.

Select content

  • Theme and style: Choose a theme or style for your visuals based on the event’s objective. For example, a projection for a music festival will have more dynamic visuals, while a projection on a historical monument might adopt a more artistic and sober style.
  • Content types: Video mapping can include video, 3D animation, still images or visual effects. Make sure the content is adapted to the chosen surface for a consistent, immersive rendering.

Step 2: Installation

Once the preparation phase is complete, it’s time to install the necessary equipment. This is a technical step, but one that is essential to guarantee sharp, precise projection.

Installing the projector

  • Choosing the projector: The projector is the heart of video mapping. Choose a projector powerful enough to cover the surface to be projected. The larger the surface and the brighter the light, the more powerful the projector will need to be in terms of lumens (light intensity). The choice of lens is also crucial. It determines the size of the projected image at a given distance. A short focal length lens will deliver a large projection at short distances, while a long focal length will deliver a smaller projection at long distances.
  • Positioning : Position the projector at the correct distance and angle to ensure clear, sharp projection. Use a tripod or stable structure to hold the projector in place and avoid vibrations that could alter projection quality.
  • Use multiple projectors (if necessary): For very large or complex surfaces, several projectors may be required. Their fields of projection must cover the entire surface.
    Make sure they are synchronized to create a smooth, consistent projection across the entire surface.

Connecting server media

  • Role of the media server: The media server is a powerful computer used to manage and synchronize projected content. It stores the various media used for projection. It can be used to manage multiple projectors, control projection parameters or adjust mapping in real time.
  • Connection: Connect your projector to the media server via HDMI or another suitable connection. Check that your media server drivers and mapping software are up to date to avoid any technical problems.

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Step 3: Software configuration

Once the hardware has been installed, it’s time to configure the video mapping software. This step enables you to calibrate the projection according to the specificities of the surface, and to manage the visuals to be projected.

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Launch software

  • Choice of software: We recommend Proxima, a media server integrating software and hardware, for greater robustness. It offers an intuitive interface for importing, configuring and projecting your creations onto complex surfaces.
  • User interface: Take the time to familiarize yourself with the interface of the software you’re using. These tools enable you to manipulate visual content, adjust its size and position, and manage connected projectors.

Importing content

  • Defining projection zones: Proxima’s intuitive interface and drawing tools let you precisely define the contours of your projection zones. Simply use your mouse to perform this operation with ease. The video mapping is visible in real time directly on the projection surfaces you’ve selected.
  • Visuals integration: Import your videos, animations or images into the software. Make sure your file resolutions are compatible with those of the projector to avoid loss of quality.
  • Alignment and adjustments: Use the software’s warping or blending functions to adjust images to the projected surface. This ensures that images perfectly match the shape of the object or structure.

Adjust parameters

  • Brightness and contrast: Adjust the brightness and contrast of projected images to suit the ambient light. This is particularly important for outdoor projections at night or in bright light.
  • Audio synchronization (if required): Enrich your videos with audio tracks. This enriches the experience and further immerses viewers.

Step 4: Projection

Once all the configuration and installation stages have been completed, it’s time for the actual projection. This is the final stage, where all the hard work comes to fruition.

Testing projection

  • Preliminary settings: Before the projection is officially launched, carry out a number of tests to ensure that everything works as planned. Check the synchronization of projectors, the quality of visuals and the correct operation of the media server.
  • Corrections: Take advantage of this phase to correct any technical problems. This may involve a slight shift in projection, brightness adjustment or realignment of visuals.

Final adjustments

  • Real-time control: If your project includes interactive elements or you’re managing a live event, make sure you can adjust the parameters in real time. Mapping software often allows you to make modifications during projection, such as changing visuals or adjusting lighting effects.
  • Handling the unexpected: Be prepared to handle technical contingencies, such as power cuts or changing weather conditions. Having back-up equipment or diagnostic tools can save your project.

Why use video mapping?

Creative and technical benefits

Video mapping offers virtually unlimited creative freedom, enabling artists and technicians to push back the boundaries of the imaginary. It enables static surfaces to be transformed into dynamic, immersive experiences, while adapting to a multitude of media. What’s more, modern projection technologies make it possible to achieve high resolutions and impressive visual effects, even on complex surfaces.

Emotional impact and flexibility

Video mapping has a strong emotional impact, as it surprises and captivates viewers by transforming their familiar surroundings. Thanks to its flexibility, it can be used on a variety of surfaces, from small objects to gigantic buildings, and in a variety of contexts, such as cultural events, product launches or festivals.

  • Visual engagement: Video mapping naturally attracts attention and generates strong visual interaction with the audience.
  • Flexibility: It can be adapted to projects of all sizes and applied to a wide variety of surfaces, both indoors and out. It’s perfect for enlivening a museum or offering an immersive experience in a restaurant.
  • Interactivity: More and more, interactive techniques are being integrated, enabling the public to interact with the projections in real time.
  • Emotional impact: Immersive, grandiose projections often leave a lasting impression, reinforcing the emotional impact of the project.

Video mapping applications

Video mapping can be used in a variety of contexts, each exploiting its unique visual potential to captivate and engage audiences.

Shows and events

At concerts, festivals or the opening ceremonies of major sporting events, video mapping is used to create immersive visual environments. Projections are often synchronized with live music or performances, adding a spectacular visual dimension that enriches the spectator’s experience.

Advertising and branding

Brands are increasingly using video mapping to create unforgettable advertising campaigns. By projecting animations onto buildings or moving objects, companies can capture the attention of passers-by and reinforce the impact of their marketing messages in innovative ways.

Contemporary art

Artists exploit the potential of video mapping to create unique, interactive works of art. Dedicated festivals, such as those in Lyon and Berlin, present installations where buildings become animated canvases, and where the public can sometimes interact with the works via motion sensors or mobile applications.

Heritage and historical monuments

Video mapping is also used to enhance architectural and cultural heritage. Historic monuments such as cathedrals and castles are transformed by projections that tell their story or make them shine in a new light. It’s a powerful way of preserving and enhancing cultural heritage while offering visitors a new experience.

Restaurants

  • Themes and atmospheres: In restaurants, video mapping can be used to create immersive themed atmospheres by projecting changing backgrounds directly onto walls, tables or plates.
  • Culinary projections: Some installations go a step further by transforming the plate into a canvas, with animations that interact with the food served, offering a unique culinary experience.

 

Fitness rooms

  • Visual motivation: video mapping can transform a gym into a dynamic environment, with motivating visuals to stimulate participants during their workouts.
  • Immersive classes: Group classes can be enhanced with immersive visual effects, creating an atmosphere that immerses participants in virtual worlds while they exercise.

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Museums

  • Interactive exhibits: Museums use video mapping to enrich their exhibits, by projecting additional information or creating interactive experiences that allow visitors to explore content from new perspectives.
  • Special events: For one-off events, such as temporary exhibitions or launches, video mapping adds a spectacular dimension that attracts large audiences.

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Software and tools for video mapping

The success of a video mapping project depends largely on the creative process. Here’s an overview of the main tools and software available to bring your ideas to life.

3D modeling software

  • Autodesk 3ds Max, Maya: These programs are used to create precise 3D models of the objects or buildings to be projected. They can also simulate complex light and shadow effects.
  • Blender: A powerful, free, open-source software increasingly used by video mapping creators.
  • Rhino 3D is a software solution for modeling shapes, objects and characters in 3D. Its many modeling and rendering functions make this software a standout performer in many fields, including industry and architecture.

Graphic design software

  • Adobe After Effects : Essential for creating complex animations and visual effects.
  • Cinema 4d Studio : Renowned for its power, efficiency and extensive functionality, Cinema 4d Studio is an essential reference for 3D creation, including video mapping.
  • Nuke : used for complex visual compositions and real-time effects.

Technical challenges of video mapping

Visually impressive, video mapping also presents a number of technical challenges. Here are the main ones…

Selection and preparation of projection surfaces

The choice of projection surfaces is crucial. The smoother, more uniform and lighter-colored the surface, the easier it will be to use. Managing ambient lighting and environmental conditions also poses additional challenges.

Alignment and calibration

Precise alignment and calibration of projectors are essential to ensure that the projection perfectly matches the shape and size of the surface to be mapped. Poor alignment results in a distorted, blurred or badly cropped projection.

Brightness and contrast

Projection brightness and contrast can be problematic, depending on ambient light, surface color and texture, and projector distance and power.

Synchronization and latency

Synchronization problems can put the projection out of sync with the sound or action, while high latency will cause a noticeable delay, affecting the overall show experience.

Interference and noise

Interference and noise can affect the clarity and stability of the projection, resulting in artifacts, flicker or distortion, all of which impair visual quality.

Current and future trends in video mapping

Interactive projections and augmented reality

Interactive video mapping is becoming increasingly common, especially at exhibitions and events where audiences can interact directly with the projections using motion sensors. Augmented reality is also becoming a key component, enabling virtual elements to be superimposed on the real world via mobile devices.

Drones and moving objects

Like the drone shows that sometimes replace fireworks displays, we can imagine drones complementing mapping. They would complement an architectural work onto which the creations would be projected.

 

 
 
 
 
 
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Using artificial intelligence

Artificial intelligence is used to generate dynamic visuals and to enrich certain parts of the creative process. It can also be used to adapt projections in real time according to the environment or audience reactions.

Video mapping : a revolutionary technique

Video mapping is a revolutionary technique that transforms any space into an immersive visual environment. Thanks to easy-to-access, powerful software and advanced projection technologies, it’s possible to captivate spectators and offer them unique experiences.Whether for shows, events, restaurants or museums, video mapping is a powerful tool for enriching the visual experience.As technology continues to evolve, we can expect even more impressive and interactive video mapping experiences in the future. From smart city applications to personalized home entertainment, the possibilities are endless.

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Video mapping glossary

  • Blending: Multi-projection system that combines several projectors to generate high-definition luminous images.
  • Deformation: The process of adjusting an image to fit a non-flat or irregular surface.
  • Lumens: A measure of the total amount of visible light emitted by a source.
  • Media Server: A computer system used to play video content and images.
  • 3D Scanning: The process of analyzing a real-world object to collect data on its shape and appearance.
  • Projection Mapping: Another term for video mapping, often used interchangeably.
  • Warping: The process of adjusting the projected image to perfectly fit the shape of the target surface, making it appear natural.