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Physically Encoding 3D Animations in Pure Geometry
Physically Encoding 3D Animations in Pure Geometry

While Mike remains stranded in the year 1503, additional design notes from the time capsule have been digitally recovered.

 

The true purpose of the invention is still unknown, but these notes shed more light on his design process. They reveal a method for creating a stereoscopic mechanical hologram, one capable of 3D animation and powered by a glow stick rather than electronics.

Step 1

The to-be-animated 3D object is constructed from spheres.
  • Large white spheres represent the positions of both eyes.
  • Green spheres represent points visible to both eyes.
  • Yellow and blue spheres represent points visible only to the left or right eye, respectively.
  • Any points not visible to either eye are hidden entirely.

Step 2

The virtual light rays between each eye and the observation points (spheres) are calculated.

At this stage, the original image is obscured.

Step 3

A cross section of those rays is taken.

The original image re-emerges with a new (stereoscopic) dimension.

Step 4

An animation encoded into pure geometry.

The light rays are calculated for 16 distinct frames of animation and then evenly rotated around a circle, creating the final pinhole tunnel geometry. This represents the mass that must be subtracted from a cylinder to reproduce the full 3D animation when spun.

Step 5

Everything comes together, layer by layer.

The slicer view is surprisingly hypnotic. The pinhole tunnels near the bottom angle upward toward both eyes, while those at the top angle downward for the same reason. Near the center, some must angle in each direction, resulting in something resembling a party with people coming and going.

Thank You

If you would like to be amongst the first to experience this new illusion of geometry, motion, and light, you can support Mike’s crowdfund right here on MakerWorld: Cryptatrope: An Adventure in Time

(Edited)
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@Daniel4d Thanks for sharing som insight, very interesting technique!
poster
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@jaxonnnnnnnnnnn to nerdy even for me
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@macjabko Amaze! ;)
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@user_166833529 love i want to make it now
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@prime_tower If you do, I’d love to hear how it goes. I recently added new quick print options as well.
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