Impossible Geometry - Reutersvärd Rectangle in a Sphere

 

This Reutersvard rectangle was tough to align.
Used the blender addon by Matias to create the initial Reutersvärd rectangle and then modified it, and added lizards..

Oscar Reutersvärd (29 November 1915 – 2 February 2002) was a Swedish graphic artist, who in 1934 pioneered the art of 3D drawings that may initially appear feasible, yet cannot be physically constructed. He is sometimes described as “the father of the impossible figure” - Wikipedia

Reutersvärd Rectangle in a Sphere by Chaitanya Krishnan on Sketchfab

Impossible Geometry - Triple Ouroboros Penrose Triangle

 

Inspired by @matiasgarate3d ‘s art spotlight - https://sketchfab.com/blogs/community/art-spotlight-impossible-penrose-snake/

Had remembered the Ouroboros(snake eating its own tail) I’d seen in tattoos and on tv (Millenium had it in the opening titles).. anyway that sent me down a rabbit hole and I decided to do a triple headed version.

Used the blender addon by Matias to create the initial penrose triangle and then modified it.
Heres the 3d model

Triple Ouroboros Penrose Triangle by Chaitanya Krishnan on Sketchfab