In architectural CGI (computer-generated imagery) projects, adding people to 3D renderings is a powerful way to enhance realism, create scale, and evoke emotional responses. By populating architectural visuals with human figures, you can transform a static rendering into a dynamic and engaging scene. This addition helps clients and potential buyers envision how the space will be used, bringing life to otherwise sterile environments.

However, selecting the right method for incorporating people into your 3D renderings can be a crucial decision. Each technique has its own advantages and aesthetic qualities. Here are five popular options to consider when adding people to your architectural CGI projects:

1. 2D Cutout People

2D cutout people are two-dimensional images of human figures that are placed within 3D environments. These images, often photographs of real people, are cut out and overlaid onto a 3D scene during post-production. While the people are technically flat, they are carefully scaled and positioned to blend seamlessly with the architectural context.

This approach is widely used for a few key reasons:

• Quick and easy: 2D cutout people are fast to implement, saving time during the rendering process. Since they don’t require complex modeling, they are a cost-effective solution for most projects.
• Photorealism: Because they are based on real photographs, cutout people maintain a high level of realism and are often difficult to distinguish from the rest of the scene when done correctly.
• Variety: There is an extensive library of pre-made 2D cutout people available, offering a wide range of figures with different poses, clothing styles, and demographics. This variety allows you to choose figures that best match the context of your project.

However, there are some limitations. Since 2D cutout people are flat, they can look out of place in renderings that require multiple perspectives or a high degree of camera movement. They also lack interaction with light and shadows, which can make them appear less integrated with the 3D environment in certain scenes.

2. 3D Modeled People

3D modeled people offer a more immersive option for architectural CGI. These figures are fully rendered in three dimensions, allowing them to interact with light, shadow, and the surrounding environment in a realistic way. 3D people can be posed in any way, making them versatile for a variety of uses, from simple walking figures to more dynamic actions like sitting or interacting with the architecture.

The benefits of using 3D people include:

• Realistic interaction: Because they are three-dimensional, these figures interact naturally with the lighting, shadows, and reflective surfaces in a scene, creating a more cohesive and believable environment.
• Flexible perspectives: 3D people can be used in any camera angle or position, allowing for seamless integration in both still images and animated walkthroughs.
• Customization: Many 3D people libraries offer the ability to customize figures, including changes in clothing, body posture, and accessories, providing more tailored results.

One downside to 3D modeled people is the additional time and effort required to render them, as they increase the overall complexity and computational load of the project. This option may also come at a higher cost compared to 2D cutouts, especially if custom figures need to be created or purchased.

3. Silhouetted People

Sometimes, less is more when it comes to incorporating human figures into architectural renderings. Silhouetted people, also known as shadow figures, are a minimalist option that can add a sense of scale and movement without drawing too much attention away from the architecture itself.

These figures are often represented as simple, dark outlines or translucent shapes that suggest human presence without providing explicit detail. This technique is particularly effective in conceptual or abstract visualizations where the focus is on the form and function of the architecture rather than on the finer details of human interaction.

Key advantages of silhouetted people include:

• Subtlety: Silhouettes can convey human activity without overpowering the architectural elements of the scene. They add depth and movement while maintaining a clean, modern aesthetic.
• Artistic appeal: Silhouetted people offer a more artistic, stylized approach to rendering, which can work well in early-stage concept designs or marketing materials that aim for a sophisticated look.
• Simplicity: These figures are often quicker to create and render than fully detailed 3D models, making them a time-efficient choice for projects with tight deadlines.

Silhouettes may not be ideal for every project, particularly those where realism is key, but they can be an elegant solution for showcasing architectural design without overcomplicating the scene.

4. Ghosted People

Ghosted people, sometimes called transparent people, are another artistic approach to incorporating human figures in architectural renderings. These figures are semi-transparent, which allows them to be present in the scene without competing for attention with the architectural details.

Ghosted people can serve several purposes:

• Soft focus: The transparency of ghosted people creates a subtle and ethereal effect, which can be useful for emphasizing the architectural space rather than the figures themselves.
• Conceptual designs: Ghosted figures are often used in early conceptual renderings to suggest human interaction without adding too much visual noise. This approach helps to maintain the clean lines and design features of the architecture while still giving the impression of a lively, inhabited space.
• Blending with architecture: Because of their transparency, ghosted figures can easily blend into backgrounds or reflective surfaces, enhancing the sense of depth in a scene.

However, the ghosted effect may not always suit projects where realism is a priority. It works best in abstract or minimalistic renderings where the architecture takes center stage and human presence is more of a suggestion than a focal point.

5. Animated People for Walkthroughs

For animated architectural walkthroughs and virtual tours, static human figures may not be enough to bring a space to life. In these cases, using animated people can create a more immersive experience. Animated human figures can walk through the space, interact with objects, or even perform specific activities like sitting, talking, or using technology.

Using animated 3D people offers several advantages for CGI projects:

• Engagement: Moving figures make walkthroughs more dynamic and engaging, encouraging viewers to explore the space in a more interactive way.
• Realism: Animations add a layer of realism that static people can’t achieve. By simulating how people move and interact in the space, animated figures can make the architectural design feel more lived-in and practical.
• Interactivity: Some advanced architectural visualization tools allow for interactive walkthroughs where viewers can choose different camera angles or control the flow of the animation, offering a highly engaging user experience.

However, rendering animated people requires significantly more computational resources and time, making it a more expensive option. It’s best suited for high-end projects, such as luxury real estate developments or large commercial properties, where the additional investment in realism can offer a strong return.

Conclusion

Incorporating people into 3D architectural renderings is a strategic way to enhance the realism and appeal of a project. Whether you opt for 2D cutouts, 3D modeled figures, silhouettes, ghosted people, or animated characters, each option offers distinct advantages depending on the goals and scope of the rendering.

Choosing the right method depends on the level of detail, realism, and artistic vision you want to achieve. By understanding the strengths and limitations of each approach, you can effectively enhance your architectural CGI projects and deliver engaging, life-like visuals that captivate clients and potential buyers alike.