reference photo
A photo reference used by an artist to aid in creating a picture. The result of using such references can range from detailed recreations of the photographs to simple copied poses. This tag is to be used on uploaded reference photos only, not all pictures known to have a reference.
This tag can be used both if the photo reference is uploaded individually, or if it is shown side-by-side with its 2d counterpart. Reference photos should be parented to their 2d counterparts.