Understanding Vellum Paper
What does translucent vellum paper mean?
Translucent material cannot be seen through clearly but light can pass through it. For example if you have ever seen sandblasted glass or white plastic skylights. Those are both examples of translucent material.
Vellum paper is also an example of a translucent material.
Because of the light catching nature of translucent paper you can create amazing effects. If you have a light source from behind it can give an ethereal look to the surface.