The light will hit your subject in a way that creates a glowing outline or highlight around the subject, depending on the direction that your light is coming from.
Rim light can be created using a form of backlighting, where the light is at an angle from behind or above. The light will hit your subject in a way that creates a glowing outline or highlight around the subject, depending on the direction that your light is coming from. This technique is useful for distinguishing the subject from the background by providing definition.