Refers to linear perspective in which there are three vanishing points, generally in the context of rectangular forms depicted so that none of their sides is parallel to the picture plane, but instead each of three groups of parallel lines recede to their own vanishing points. This technique was made popular in 17th-century European stage design. It may also refer to depictions in which there are three points of view, as was also often used in Chinese hanging scroll landscapes, in which the viewer sees the foreground from above, the middle ground at eye-level, and the highest objects from below.
