How to make a VR panorama?

For the production of VR panorama, we need multiple 720-degree images without dead ends. These photos can be taken. There must be one-third overlap between adjacent pictures. In order to facilitate the later stitching, we need to manually add control points and optimize them. The next step is to mosaic panoramic images of virtual reality. After stitching, a spherical panoramic image or a cubic panoramic image can be generated. Before editing the VR panorama, we must beautify the mosaic panorama before continuing. If the picture is not handled well, it will lead to great problems in the final product drawing. After processing, we can import the panoramic image into the panoramic tool. At present, the panoramic tool is mainly ptgui, which can be combined and spliced with one key, which is very convenient.