The question of choosing equipment for shooting spherical panoramas and creating virtual tours is one of the most important for a photographer - a panoramic photographer. On the TrueVirtualTours website, you have access to examples of work performed using one or other equipment and software.
Many novice photographers have probably seen interactive panoramas on the Internet where they can spin and see everything around them. Often such content is called 3d panoramas.
The order is as follows: 1) upload to the site spherical panoramas from which you plan to create a virtual tour; 2) from the list of uploaded panoramas add each panorama to the virtual tour (Add to 3D tour link); 3) open the created virtual tour, edit the panorama order, select the main panorama, set transition points (tunnels).