Assuming an eye separation E=2.5 inch, m=1/3, and a screen resolution of 75 DPI we get a stereo separation of 93 pixels for the far plane, and 75 for the near plane (resulting from s=E(1-mz)/(2-mz) evaluated for z=1 and z=0). That means that the scene will be displayed using just 93-75+1=19 different depth levels. It will probably look like if it was built of several layers of lego-stones. In addition the distance between two layers is not constant, because of the non-linearity of the stereo separation function.
Echoes in an image generated with our program without use of hidden surface removal
SIRDS of the same object generated with hidden surfaces removed.
The pictures above show echoes within SIRDS generated with and without hsr. The scene is a hollow rounded rectangle placed in the near plane. A white pixel indicates, that two equally colored pixels separated by the stereo separation of near were found in the SIRDS at this posi-tion (x and x+near). This is of course true for the image of the rectangle. The noise around it appears because of random matches of images of the background. The left figure, generated without hsr also shows a large and several small echoes (uniform white areas).