3D City in web application

Does anyone give me some idea about this kind of web application and how they compress this whole thing?

what you are seeing is a series of jpgs displayed when you press the rotate button

e.g.,
https://solis-dev.sobha.cloud/wp-content/themes/3d/assets/s3d/images/flyby/masterplan/97.jpg
https://solis-dev.sobha.cloud/wp-content/themes/3d/assets/s3d/images/flyby/masterplan/98.jpg
https://solis-dev.sobha.cloud/wp-content/themes/3d/assets/s3d/images/flyby/masterplan/99.jpg

I dont think threejs is at all. I couldn’t find it in the source.

Yea I thought so, but i am curious how they make that hover things also, if you hover on the building they it will neigh light also. And some more details are there if you check like if you hover on the building then more detail come with it and all…

i saw. its not threejs that made that. maybe you can export a jpg series in blender, and add outlines, and then add hotspots using HTML.
Lots of work was put into this. But its not threejs.
Maybe there are some clues in the source

That can be done in threejs with clever tricks where the focus assets is the only one that’s loaded and the background are just impostors.