3D rendering glossary
3D video: what it is, types and uses in architecture
A 3D video is a sequence of images generated from a three-dimensional model, in which the camera or objects move through the scene. The term also refers to stereoscopic video viewed with 3D glasses. In architecture, a 3D video is a photorealistic animation that walks through a building before it exists.
The two meanings of 3D video
In everyday language, "3D video" can mean two different things:
- Stereoscopic video: two slightly offset images are recorded or generated, one for each eye, and the brain combines them to perceive depth. This is the format of 3D cinema, some televisions and VR headsets.
- 3D animation: a computer-generated video created from a 3D model. It is viewed on a normal screen, but everything shown has been modelled, lit and rendered. This is the sense used in architecture, advertising, product design and animated film.
In this article we focus on the second meaning, the one most searched for by architects and developers.
In practice: Render Fabrik is a 3D architectural rendering studio working with clients in Brazil and Europe, with a quote within 24 hours.
How an architectural 3D video is produced
- Script and storyboard: define what you want to tell (location, facade, communal areas, typical home) and in what order.
- Modelling and set dressing: build the building, surroundings, landscaping, furniture and people.
- Materials and lighting: adjust finishes and light, often with different times of day to create rhythm.
- Camera animation: plot the paths, with smooth movements and natural speeds.
- Render: calculate all frames. At 25 or 30 frames per second, one minute of video equals 1,500 or 1,800 images.
- Editing and post-production: assembly, colour correction, captions, logo, music and voice-over.
Types of 3D video in architecture
| Type | What it shows | Common use |
|---|---|---|
| Exterior flythrough | Aerial view of the building and its surroundings | Launches, investor presentations |
| Interior walkthrough | Tour of the home or communal areas | Sales suite, property portals |
| Short social media video | 15 to 60-second clips, often vertical | Instagram, TikTok, adverts |
| Technical or process video | Construction phases, structural assembly, solar studies | Competitions, planning permission, team communication |
| 360 video | Scene where the viewer chooses where to look | VR headsets, YouTube 360 |
Benefits of 3D video for architects and developers
- Sell off plan: the buyer understands the final product, layout and surroundings without waiting for construction.
- Communicate scale and sequence: movement conveys routes, heights and relationships between spaces better than a still image.
- Create emotion: light, music and pace create an atmosphere that brings the client closer to the lifestyle the project offers.
- Reuse content: from the same video you can extract short clips for social media, fragments for adverts and still frames for brochures.
- Present to third parties: local authorities, investors and juries understand a moving project better.
3D video compared with other tools
A still image is quicker to produce and works for billboards, brochures and property portals. A 360 virtual tour allows the user to explore freely, but without a script. An interactive model adds unit selection and sales data. A 3D video is the format with the most narrative control: the studio decides what is seen, in what order and with what emotion. The ideal approach is usually to combine several formats in the same campaign.
Best practices and common mistakes
- Define the duration and channels before starting: a video for a sales suite and one for social media have different rhythms.
- Avoid abrupt or overly fast camera movements, which cause motion sickness and reduce credibility.
- Freeze the design before animating: a facade change means re-rendering thousands of frames.
- Get the scale of people and cars right, and do not overcrowd the scene.
- Plan horizontal and vertical versions if the video will be used on social media.
3D video in a visualisation studio
At Render Fabrik we produce 3D videos for developers, contractors and architects, from script to final edit, with staged approvals so the result meets the commercial objective. You can find out about our 3D video service, see how we work in Spain or view examples of renders in Madrid.
Frequently asked questions
How long is a 3D video for a property development?
It depends on the use. For social media, 15 to 60 seconds is usually enough; for presentations and sales suites, videos of one to three minutes are common.
What is the difference between a 3D video and 3D animation?
In architecture they are used as synonyms. Strictly speaking, animation is the movement of camera and objects, and a 3D video is the final rendered, edited piece with sound.
What does the studio need to make a 3D video?
Plans or a 3D model of the project, finishes schedule, visual references, information about the surroundings and an idea of the audience and channels where the video will be used.
Can a 3D video be viewed with VR headsets?
Yes, if it is produced in 360 or stereoscopic format. A conventional 3D video is viewed on normal screens and is the most used format in property marketing.