The method of 3D viewing that is utilized is called cross-viewing or the cross-eyed method. It entails the following: you aim your eyes so that your eyes cross in front of the image. Make certain that you are facing the picture squarely, at normal viewing distance from the monitor. When you start to look cross-eyed, you will observe that the black dot seems to split in two; the red dots moving inward and the black dots outwards. Continue to look more cross-eyed until the red dots move past the black dots and you finally have two red dots merging in the center to form a single red dot, flanked by two black dots.