Figure 2.

Illustration of the “Stereo Front” effect. Should be viewed with red‐green or red‐magenta glasses. Green on left eye, red on right eye creates a stereo “front” object (FRO). Red on left eye, green on right eye creates stereo “back” object (BKO). Small picture at lower right represents what should be seen (LMO). Note that the “front” object (green on left eye) is perceived much easier than the “back” object (green on right eye).