See Difference Between 2D, 3D & 4D in This Blender Test
It might make you understand how we perceive dimensions.
If you don't quite get what 4D objects look like, this Blender demo by TerminallyCapricious might shed some light on the concept.
The artist showed a cube turning from 4D to 3D to 2D in one mesmerizing animation, and it might take some time for the brain to catch up with what's happening with the 4th dimension, the spatial W axis.
When describing their work with the 4D cube, TerminallyCapricious offered 2 solutions to its digital representation:
- Tie the global W direction to the current view direction and displace the verts along the W direction. This allows you to wrap your mind around what is actually happening, but it causes clipping and will not work for multiple viewers.
- Leave it as is, assuming the viewers already know that the "smaller cube" is actually not small but rather that it's farther away on the W axis. No clipping, but less informative. So I chose the first one, but I can absolutely do the second one as well.
Once you figure it out, check out what else the creator has on their Reddit page:
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