Let me ask you a question. When we were young, we had the kind of pencil case where we could see different cases from different angles. What is the craft?

Grating painting, also known as "stereoscopic painting" and "panoramic painting", is a special picture that can directly see the three-dimensional effect. It is an artistic picture with three-dimensional dynamic effect designed by computer simulation based on the principle of optical refraction imaging and the difference of human vision, supplemented by optical media. People's eyes are 6-7 cm apart. When the left eye and the right eye look at an object, they see two slightly different images from different angles. The brain synthesizes these two parallax images to form a three-dimensional sense.

When watching a three-dimensional movie, the audience needs to wear a pair of special glasses, which will make them feel immersive. The function of glasses is to make parallax images taken by two cameras enter people's left and right eyes respectively. Grating stereoscopic painting, like stereoscopic film, only uses grating instead of glasses, which saves the audience the burden of wearing glasses.