You all probably already know about the Ames room illusion in which a seemingly normal-looking room makes people located by the far wall appear to have vastly different sizes.

@henryseg just posted a YouTube video providing a more in-depth look (matrix math!!!) at the mathematics behind the Ames room.

https://mathstodon.xyz/@henryseg/110440915290009178

#AmesRoom #illusions #OpticalIllusions