What is a VR movie? What's the difference between VR movies and ordinary 3D movies?

The stereoscopic display principle of vr and 3d movies is based on the parallax between the left and right eyes of the human body, but the realization methods are slightly different. The common practice of 3d movies is to add different polarized light to the images corresponding to the left and right eyes, and then superimpose them and play them on the screen. The naked eye is blurred. After wearing polarized glasses corresponding to the left and right eyes, the left eye can see the left eye image and the right eye can see the right eye image. Ugpvr's approach is relatively simple and direct, that is, it provides two sets of parallax images for the left and right eyes. Although they all have stereoscopic visual effects, their biggest difference is that ugpvr provides an immersive experience, which makes people feel as if they are there.