Marketing

How Do 3d Billboards Work?

June 24, 2024
Kleenex 3D billboard. A child with a big snot bubble and a tissue box kept next to him.
Daan van der Wiele
Written by

Daan van der Wiele

Co-Founder, Marketing & Product

Table of Contents

Imagine driving down a busy street when suddenly, a giant sneaker seems to erupt from the side of a building! Or a ferocious T-Rex lunges out, seemingly ready to leap onto you, and for a second, you duck down or scream, realizing this is not real but the outstanding illusion of a 3D billboard! These captivating displays are taking traditional advertising to a whole new dimension.

For years, billboards worldwide have been used to grab people’s attention, but they still end up missing out on the “wow” factor that would make someone stop and look at the advertisement. 3D (three-dimensional) billboards have changed the face of out-of-home advertising by making the busiest crowd stop and glance at the featured ad. 

This blog will give you an overview of 3D billboards: What they are, types of 3D billboards, how they work, and their limitations. Next time you see one, you can be the smart one in the crowd explaining how these futuristic billboards work! 

What are 3D Billboards?

3D billboards are next-level displays that use still or moving images and text to create the illusion of depth, making it seem like what you see is popping right out at you. These outdoor displays often use LED screens and other cutting-edge tech to show realistic, three-dimensional content and the clever use of perspective adds to building this illusion. Unlike traditional billboards with videos or pictures that seem stuck behind glass, 3D billboards make it look like what you see is actually there, right in front of you.

Different types of 3D billboards use a variety of creative tricks to get this exceptional effect. If you want to feel like you are in a science fiction film, check out a 3D billboard, it will give you that experience within a few seconds. This is particularly impressive because, unlike traditional 3D experiences requiring special glasses, these billboards achieve the effect without additional equipment.

A World of Dimensions: Types of 3D Billboards

There are several ways to create a 3D billboard experience. Here are a few of the most common:

Cutout Billboards 

  • What Are Cutout Billboards?
    • They are special types of billboards that create a cool 3D effect, making the images look like they are popping out or have more depth than they really do.
  • How Do They Work?
    • They use a trick called "forced perspective." This means they play with angles and sizes to make parts of the billboard appear bigger or smaller, giving an illusion of depth and making the images look more real and engaging.
  • Why Are They Impressive?
    • Because of this 3D effect, these billboards stand out and grab people’s attention. They look more interesting and can make the advertisement more memorable to viewers.
  • Environmental Benefits:
    • These billboards often use less material compared to regular billboards. This means they can be more eco-friendly, which is good for the environment.
    • Since they use less stuff, they also help reduce waste and are a better choice for companies that want to be more sustainable.
  • Why Do Advertisers Like Them?
    • Advertisers can get really creative with these billboards. They can design unique and impactful messages that catch people's eyes and stick in their minds.
    • Plus, being more eco-friendly is a bonus that aligns with the current trend of promoting sustainability in advertising.

Overall, Cutout billboards use a clever visual trick to make ads look like they have more depth and pop out at you. This makes them more engaging and memorable. They are also better for the environment because they use less material, making them a popular choice for modern, sustainable advertising.

Anamorphic Billboards

  • What Is an Anamorphic Billboard?
    • It’s a special kind of billboard that uses an optical illusion to make a flat image look like it’s three-dimensional (3D) and popping out of the surface.
  • How Does It Work?
    • The image is carefully designed and distorted in such a way that, when you look at it from a specific angle, your brain is tricked into seeing a 3D effect.
    • It’s like magic for your eyes: from most viewpoints, it looks weird and stretched, but from just the right spot, it looks amazingly real and 3D.
  • Why Are They So Engaging?
    • People find these billboards much more interesting and eye-catching compared to regular flat ads.
    • According to a study by BCN Visuals, a lot of people (68%) think these ads make the brand look more high-end or “premium.”
    • Moreover, 66% of viewers are more likely to want to buy the product after seeing such an ad.
    • More than half of the people surveyed (55%) indicated that they would probably take a video of a 3D anamorphic advertisement and share it with their friends. In today's environment, where many prefer to skip or overlook ads, the idea that viewers are eager to capture and share these 3D ads with their friends is exceptional. This level of engagement is unparalleled by any other type of advertising.
  • Where Are They Most Effective?
    • They work especially well in busy city areas where lots of people walk or drive by.
    • The surrounding buildings and the movement of people help enhance the 3D illusion, making the billboard stand out even more.

Overall, an anamorphic billboard uses a clever visual trick to make flat images look like they are popping out in 3D when seen from a specific angle. This makes the ad more captivating and memorable. Studies show that people are more likely to think the brand is fancy and be interested in buying the product after seeing such an ad. They are particularly striking in crowded urban places where the illusion can be maximized.

Digital 3D Billboards

Digital 3D Billboards are a modern type of billboard that uses advanced technology to show eye-catching, three-dimensional ads. Here’s what makes them special:

  • Live Updates: The content on these billboards can be changed instantly and remotely, so advertisers can quickly update their messages or graphics whenever they want.
  • Versatile Displays: These billboards can show a variety of messages and images, making them flexible for different advertising needs.
  • Immersive Experience: They create a 3D effect that makes the images look like they are popping out of the billboard. This can make the ad feel more engaging and exciting for people walking or driving by.
  • Virtual Reality Elements: Some of these billboards even use virtual reality technology, which can make the ads even more interactive and impressive.
  • Effective Advertising: Because they are so visually appealing and innovative, these billboards grab people’s attention easily, helping brands to stand out and be remembered by consumers.

In simple terms, Digital 3D Billboards are like the high-tech, interactive, and visually stunning future of outdoor advertising that can change in an instant and really capture people’s interest.

Holographic Billboards

  • What They Are:
    • Holographic billboards are high-tech displays that use special technology called holography to show 3D images. These images look like they’re floating in the air, without needing any special glasses to see them.
  • 3D Billboards vs. 3D Holographic Projection:
    • 3D Billboards: These are flat screens that show pictures or videos in a way that makes them look three-dimensional to the naked eye.
    • 3D Holographic Projection: Unlike 3D billboards, holographic projections create images that actually appear to float in space and look real from any angle without needing special glasses.
  • How They Work:
    • They use something called wavefront reconstruction to project these 3D images into space. 
  • What Makes Them Special:
    • These billboards catch people's eyes because the images look so real and they seem to move and change when you look at them from different angles. It's like they're alive!
  • Different from Anamorphic Billboards:
    • Anamorphic billboards create a 3D effect using tricks on a flat surface, but holographic billboards actually project real 3D images into the air. So, they're even cooler!
  • Why They're Awesome:
    • Holographic billboards are the next big thing in outdoor advertising because they're so futuristic and engaging. They're perfect for special marketing campaigns where you want to wow people and make them remember your brand.

In simple terms, holographic billboards make 3D images that look like they’re floating in thin air, without needing any special glasses. They’re perfect for making people stop and stare.

Augmented Reality Billboard

  • What They Are:
    • AR billboards are fancy digital ads that mix computer-generated images with the real world. Instead of just looking at a regular billboard, you use your smartphone to see cool stuff overlaid on it.
  • How They Work:
    • You scan a QR code or use a special app on your phone to unlock the experience. Then, virtual stuff—like animations, videos, or even games— appears on your screen, right on top of the billboard.
  • Why They're Cool:
    • These billboards let you interact with them. You can play games, watch videos, or explore cool animations, all right from your phone. It's like having a mini-adventure right there on the street!
  • What Makes Them Special:
    • AR billboards aren't just ads; they're experiences. They're tailored just for you, and they often give you a special task to do, like visiting a website or checking out exclusive content.
  • Why Advertisers Love Them:

In simple terms, AR billboards are like having a secret world pop up on your phone when you're walking down the street. They're fun, interactive, and make you want to check them out!

3D Projection Mapping Billboards

  • What They Do:
    • These billboards use fancy technology to turn walls, buildings, or even ordinary objects into eye-catching displays. It's like they bring the surface to life with moving pictures!
  • How They Work:
    • Instead of just showing a regular ad, these billboards use special projectors to create amazing visuals. They can make it seem like buildings are changing shape or objects are moving—making the ads super cool to watch!
  • Why They're Awesome:
    • These billboards take advertising to a whole new level! They tell stories in a way that grabs your attention and makes you feel like you're part of the action. It's like stepping into a movie!
  • What Brands Love About Them:
    • Brands love using 3D projection mapping because it lets them be super creative. They can tell their story in a way that sticks in people's minds, making them remember the brand long after they've seen the ad.
  • Why People Love Watching Them:
    • Watching these billboards feels like going on an adventure! They're so immersive that you can't help but get caught up in watching the advertisement. Plus, they often have interactive parts that let you join in the fun!

In simple terms, 3D projection mapping billboards turn everyday surfaces into exciting canvases, telling stories that make you feel like you're in a whole new world!

The Reality Behind the Illusion: How Does it Work?

This is the moment where the magician reveals the secret behind the illusion. You are about to experience an "aha" moment by the end of this section. Much like the unveiling of a magician's trick, what initially seems impossible will soon become clear and make perfect sense. Get ready for your "aha" moment as we delve into how these stunning visuals are created and how our brains perceive them.

The Trick Behind 3D Billboards

  1. How We See in 3D: The Role of Our Brain
    • Two Eyes, Two Views: Our eyes are spaced about 65mm apart, so each eye sees a slightly different view of the world. This difference is called binocular disparity.
    • Combining Images: Our brain merges these two slightly different views into one, allowing us to perceive depth and see the world in three dimensions.
  2. How 3D Billboards Use This Trick
    • Binocular Parallax: This is the key principle behind 3D billboards. They show two images on the screen from slightly different angles, mimicking the way each eye sees the world.
    • Creating Depth: When you look at these images, your brain combines them into a single picture that appears to have depth and dimension, even though the screen itself is flat.
  3. Viewing Angle and Distance
    • Optimal Viewing Spot: To experience the 3D effect properly, you need to be at a certain distance and angle from the billboard. If you're too close or too far away, the effect won't be as strong.
    • 2D Screen with a 3D Illusion: The screen is still a flat, 2D surface, but it shows images in a way that tricks your eyes into seeing them as 3D.

How Our Brains Perceive 3D

  1. Visual Cues for Depth Perception
    • Texture Gradients: As objects move further away, their texture becomes less detailed and more compressed. This helps the brain judge how far away something is.
    • Shading and Light: Light and shadows on objects give us clues about their shape and form. For example, a sphere will show a gradual change in shading from light to dark.
    • Perspective: Objects that are farther away appear smaller than those that are closer. This helps our brain gauge depth and distance.
  2. Combining These Cues
    • Building a Mental 3D Model: Our brain takes all these cues (binocular disparity, texture, shading, and perspective) and combines them to create a mental model of the 3D world around us.

Applying This to 3D Billboards

  1. Creating the Illusion
    • Two Images, One Screen: 3D billboards display two versions of an image or video from slightly different angles, similar to how our eyes see differently from each other.
    • Superimposing Images: These two images are displayed in such a way that our left and right eyes see them from slightly different perspectives. This tricks our brain into seeing a single, three-dimensional image.
  2. Special Techniques
    • Curved Screens and Parallax Barriers: Some 3D billboards use curved screens or special filters that help separate the light for each image, enhancing the 3D effect.
  3. Forced Perspective
    • Adjusting Distance and Angle: The billboards use techniques like adjusting the distance and angle of images to enhance the sense of depth, making closer objects look larger and farther objects appear smaller.

The Technology Behind 3D Billboards

  1. Parallax Technology
    • Creating Depth: By using multiple layers of images that move at different speeds, parallax technology mimics the way our eyes perceive depth in the real world, making the billboard look more realistic.
  2. Stereoscopic Imaging
    • Simulating Natural Vision: This involves presenting slightly different images to each eye, similar to our natural binocular vision. Special lenses or autostereoscopic displays can achieve this without needing 3D glasses.
  3. Layered Content
    • Building the Image: The content on 3D billboards is created in layers, such as foreground, middle-ground, and background. These layers move independently or interact with viewers to create a multidimensional effect.
  4. LED Display Technology
    • High-Quality Visuals: High-quality LEDs are crucial for bright, vibrant, and dynamic visuals. They allow precise control of individual pixels, helping to create intricate and realistic 3D effects.
  5. Motion Sensors and Interactivity
    • Engaging Viewers: Some 3D billboards use motion sensors and interactive elements to respond to viewers' movements, making the experience more engaging and personalized.

Limitations: Not All That Glitters is Gold

While 3D billboards offer a unique and eye-catching way to advertise, they also come with some limitations.

  1. Maintenance Needs: 3D billboards are more delicate and complex than traditional 2D ones. They often include sensitive components like parallax barriers, which can be easily damaged or require regular upkeep. This added complexity means more frequent cleaning, repairs, and replacements, leading to higher maintenance costs over time.
  2. Need for Technical Expertise: Creating effective 3D billboard content requires specialized skills in areas like projection mapping and 3D modeling. Each display must be precisely calibrated to ensure the 3D effect is visible from the intended viewing area. This need for technical expertise can complicate the process and increase production costs.
  3. Placement Restrictions: Due to their size and the space they occupy, 3D billboards can't be placed just anywhere. They need large, open spaces where they won't be obstructed and can be fully appreciated. Finding suitable locations can be challenging and may limit where these billboards can be effectively deployed, potentially reducing their audience reach.
  4. High Expense: Designing and installing 3D billboards can be expensive. The cost of producing 3D content and the premium locations where these billboards are usually found (such as major city centers) can drive up the price significantly. These expenses can quickly add up, making 3D billboards a substantial investment, often out of reach for smaller brands with limited budgets.
  5. Viewing Angle Constraints: The illusion created by 3D billboards is most effective from specific viewing angles and distances. Outside of these optimal viewing spots, the 3D effect can appear distorted or ineffective. This means the billboard's impact is limited to people within a particular range and angle, potentially reducing its overall effectiveness in capturing a broad audience.

Despite these challenges, 3D billboards continue to captivate and engage viewers, providing a powerful tool for brands looking to make a significant visual impact.

The Future of Advertising: A New Dimension Awaits

3D billboards are a glimpse into the future of advertising. They offer viewers a more interactive and engaging experience, potentially leading to higher brand recall and a more impactful message. As technology advances and costs decrease, we can expect to see even more creative and immersive 3D displays capturing our attention on the streets.

So, the next time you're out and about, keep an eye out for a billboard that seems to jump off the screen, as now you know the secret of how this futuristic advertisement works!

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