Support for VR glasses with mobile phone

There are more and more phones with large screens these days, but there's a problem with the screen size being too large to see well when viewing with VR glasses.
Therefore, the 3D360/3D180 web app pinches the image in the left half of the screen to zoom in/out as usual, but pinching in the right half of the screen reduces the display size and allows you to adjust the display size to a size that is easy to see with VR glasses, even on large screens.

1. If you pinch in the left half of the screen, zoom in/out as usual.

2. Pinch in the right half to change the display size (for VR glasses).