p121fig03.46 The Rouen cathedral in full sunlight contains T-Junctions that are not salient in the painting of it at sunset.  These are among the painting's features that give it a much more depthful appearance.<BR>||  <I>Rouen Cathedral full sunlight</i> (Monet 1892-1894).<UL><LI>There are also more T-junctions where vertical boundaries occlude horizontal boundaries, or conversely...<LI>Leading to more depth.</ul>p119c2h1.0 "... Such T-junction boundary occlusions ... can generate percepts of depth in the absence of any other visual clues. ...".