The background of this environment Looks like an HDR scene.
Anyways, the reason why I am asking this question here is because I’d like to combine this with a joystick plugin so users can navigate the cameras with both.
No puzzles. JS only. See the source code of those pages. Note that it will work via HTTPS only (that means you can’t test an app in a local network ). And you can’t use two types of controls (FP and DO) at the same time.