How to shoot a hotel mirror for two people?

There are some ways to take a mirror without a camera. At present, there are several methods:

1. First, objectively shoot the scene where the mirror appears, then put on props and body body double, and shoot the actors through the props. Body body double shows some body movements in front of the camera to achieve the desired effect.

2. The actor performs in front of the mirror. The lens shoots the lens and the actor together in front of the actor, then rotates the lens to repeat the performance once, and achieves the effect through the later special effects adjustment.

3. Complete late keying is realized.

Late stage is the most common way at present.

SD and HD, 24 frames/second and 48 frames/second, and 24/48 pictures are played for one second in the shooting order. In the later technical processing, these 24/48 frames are replaced frame by frame. If it is simple, PS can be done frame by frame, but it is time-consuming. Some professionals will use AE, Premiere, NUKE, Houdini and other software.

Frame-by-frame processing is the same as changing characters and background in PS matting in principle. Do actions in the solid background in the early stage, delete the solid background in the later stage, and then replace the dynamic characters in the mirror, which can completely replace the shadows with real shots.