To view the demonstrations you must have QuickTime installed on your computer. To download a free copy click on the QuickTime link below.
To download the demonstrations Right Click (PC Users) or hold down the Option key on your keyboard and Click (Mac Users) on the links below. (The apparent triangular surface demonstration is not included, because the density of the random dots is too low to simulate a surface that is discriminable from our sine wave surface.) Figures 1 and 2 that appear in the paper (and Figure 3 that appears in the "Definition of Motion Parallax Magnitude" link) are made available for instructors who want to use them in a lecture. The last two links in the "Illustrations and Definitions" column below are concerned with the quantitative specification of parallax magnitude and the size of head movement to be used in the demonstrations.