Does the studio have to have a white wall?

Because studio lights are generally used in photo studios, as long as there are walls that reflect some light more or less, if the walls are white, it is easy to make your film color cast (except black, of course), and white walls can also make indoor light more abundant, improve brightness and make the film transparent!

The studio is a building dedicated to shooting. In the history of movies, the earliest studios were frames and glass ceilings made of metal and wood by sunlight. The working area in the studio is generally 500~5000 square meters.