I have made a box in exaggerated perspective and drew a grid on the inside. I then printed out tiny Hiero's which I placed at different depths within the box. Then I photographed the box in stereo, hoping that the grid inside the box would aid the stereoscopic effect. It did.
stereoscopic
Stereo Drawings
These two drawings, when viewed through a vision splitter, show the polyhedron in 3D space.
