How did the beauty in white go down the stairs to make stuffing?

It was shot by digital synthesis and trick photography technology. When shooting, the actors and props are put in front of the actual shooting stairs after the performance. Then the post-production staff used digital synthesis technology to simulate a virtual staircase scene by computer, and let the actors perform in this virtual scene. Finally, the two scenes are integrated by means of special effects synthesis, resulting in a special effect scene of going down the stairs. The shooting and production of this special effect requires professional photography technology, computer technology and special effect production technology, and requires a lot of manpower, time and capital costs, so it is not a special effect that ordinary TV dramas can easily achieve. The special effect "Down the stairs for stuffing" in Bai Meiren is a successful special effect innovation, which shows the latest technological achievements of film and television special effects and provides more possibilities for the development of film and television special effects technology.