What is "light painting"

n. 1 (context uncountable English) The artistic technique of moving a light source to selectively illuminate parts of the subject or scene a camera is recording (at a slow shutter speed), or to shine directly into the camera and in this way sketch#Verb. 2 (context uncountable English) camera painting, the artistic technique of moving a camera (while it records at a low shutter speed) such that light sources appear in multiple places or as streaks in the resulting photograph, the "painting". 3 (context countable English) A painting created using one of these techniques. 4 (&lit light painting English)

Light painting, or light drawing, is a photographic technique in which exposures are made by moving a hand-held light source while taking a long exposure photograph, either to illuminate a subject or to shine a point of light directly at the camera, or by moving the camera itself during exposure The technique is used for both scientific and artistic purposes, as well as in commercial photography.