Here a perspective is achieved by removing the empty spacings between each term in the array as they tail-off into the vanishing-point 2/3rds the way up in the background. To understand this effect, think of the picture-height, when b1=60, for each term in the array: 54,48,42,36,30,24,18,12 and 6; imagine them stacked one on top of the other; to place the top left-hand corner of each pic so that you get this effect, starting from the bottom, you take ten(1/10th pixel)steps forward and one step back.. then ten steps forward and two steps back.. then ten steps forward and three steps back.. and so on in a cumulative progression.
