When you want to show a place, a space or a product, the first question is not the technology. It is this: what does the viewer need to be able to do? Do they only need to see it, or do they need to understand how the whole thing fits together?
Photos: quick and usable everywhere
A photo is the easiest way to show what something looks like. It opens on almost any device, you can share it easily, and it conveys the mood at a glance. A good photo is often a good choice for a brochure, a search result and social media. But a photo does not show what is outside the frame. The viewer sees only the angles the photographer chose, and the proportions of a space and the routes through it are left to guesswork.
Video: movement and storytelling
Video adds movement, sound and sequence. It suits a story: how you arrive at a place, how a product works, what an event feels like. A video is also easy to watch, because the viewer does not have to do anything. But the same strength is also the limit. In a video, the viewer follows a route chosen by someone else, at a pace chosen by someone else. If they want to look at a corner the video did not show, they have no way to do it.
A 3D model: the viewer decides
A 3D model of a real place that runs in the browser lets the viewer take control. They move through the space, look in the direction they choose and stop where something interests them. They do not have to install anything; the address is enough. An example is Calesta's own showcase work, the windmill.
The downside is that a 3D model usually takes more work than a single photo. It can also take longer to open than a single image, and it shows the place as it was when the model was made. If the place changes, the model has to be updated.
When a 3D model is worth it
A 3D model is worth it when the viewer's decision depends on how the space is put together. That is the case when the space is large or complex, when the viewer cannot visit before deciding, or when you want them to get to know the place at their own pace. It also suits a place you will show for a long time and in many situations.
When a 3D model is not worth it
If the place is small, if the mood matters more than the layout, or if the place changes all the time, a photo or a video is usually the better choice. The same goes when you need something quickly or when the budget stretches to only one thing. In that case, invest in good photos or a short video.
You also do not have to choose just one. Sometimes it makes sense to use all three: photos support discoverability, video tells the story, and a 3D model lets the interested viewer look closer.