Guarini's optical illusion is depicted through the inverted triangles that outline the six hexagonal layers. By decreasing the heights between each hexagon layer, Guarini created a dome that appears to recede farther up into space than it actually does. In distorting the triangles, to maintain a height of 1.70 cm between each layer, the same visual effect is produced.
The new triangle layers are created in the same way as the original
triangle layers, but using the new radii and
heights. After placing these new triangle layers into the
distorted cone the image created remains the
same as the image Guarini created. This is assuming the individual is
standing directly below the dome because the image created depends on
the specific position the viewer is located. This distortion can be
seen in one of the animations.
|Optical Illusion & Projection in Domes: A Study of Guarino