I’ve never tried this before: create a rotating polyhedral image which is difficult to watch, using disorienting effects, such as the rotation of the images of spirals on the rotating faces. The spiral is made of golden gnomons (obtuse triangles with a base:leg ratio which is the golden ratio). This image, alone and without comment, is shown in the previous post, and was made using Geometer’s Sketchpad and MS-Paint. In the preparation for this post, it was further altered, including the projection of it onto the faces of a great rhombicosidodecahedron, and creating this rotating .gif. This part of the process was performed using a program called Stella 4d: Polyhedron Navigator, available here. You be the judge, please: is it, in fact, difficult to watch? Did I accomplish my (admittedly rather odd) goal?
RobertLovesPi.net 
It is a little disorienting. It’s almost like looking into a “Black Hole”.
Leslie
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From what distance to the event horizon? Also, what mass of black hole are we talking about?
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The rotating part has some black in it that seems to draw me in.
Leslie
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Ah, gotcha. The image I used had all primary and secondary colors, but I allowed Stella to combine that with the default face-colors for this polyhedron, also. This produced the dark regions, as the manifestation of incompatible color-combinations, such as blue and orange.
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That sounds very complicated but that is how it worked for me.
Leslie
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Hmm… A little disorienting, but maybe it’d be more difficult to pinpoint the individual faces if the spiral images were different colors. It is, however, certainly captivating, hypnotic, and maybe even a little therapeutic.
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Whoops! I meant if they were the SAME colors.
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Ah, ok!
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Hell no! Quite the contrary! It’s easier to watch than Hillary testifying at the House
Select Benghazi Committee hearing. Though, that’s not saying much!
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