Ambiguous Object Square, Circle
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Description
Equilibrium Point (Perspective-Reversing Cylinder)
This is an optical illusion solid that appears as a “cylinder” from viewpoint A, and a “rhombus-shaped column” from viewpoint B (180° rotation). The cross-section is neither a circle nor a rhombus; instead, a special deformed cross-section is generated with BlenderPython to satisfy both silhouettes.
I have reproduced the same shape as the Equilibrium Point introduced on TV, but since the method of creation was not disclosed on TV, the shape generation algorithm is entirely my own idea.
I am grateful to the person who shared this wonderful idea.
※Printing is permitted, but sales are prohibited.
Equilibrium Point (Perspective-Reversing Cylinder)
From one viewpoint it appears as a cylinder, but when rotated 180°, it looks like a rhombus-shaped column. The cross‑section is neither a circle nor a rhombus; instead, it is a specially deformed profile generated with Blender Python to satisfy both silhouettes.
This model reproduces the same shape as the Equilibrium Point introduced on TV. However, since the TV program did not show how it was made, the entire shape‑generation algorithm is my own original design.
I am grateful to the person who introduced this wonderful optical illusion.
※ Printing is allowed, but commercial sales are prohibited.
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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