What is the difference between curved glass and flat glass in product photography?

Glass is highly reflective. When shooting, the most basic thing is not to turn you or your equipment and assistants upside down, followed by avoiding some reflective points that you or your customers don't like, and finally adding reflective points or lines that you like or need. To do this, you should consider the size and shape of the object to be treated differently. For a simple example, a long light box parallel to the object is a belt on the plane, and it will be wide and narrow on the curved surface. If you want the same effect as a plane, then you have to make an arc reflector and other methods. Of course, customers don't care, so let's shoot. All the things that can pay the bill satisfactorily are good things.