I recently made a 4D raytracer of the slicing kind — meaning that it shows you a 3D slice of a 4D world. The gimmick of this raytracer is that it’s entirely in first person. You can scroll to rotate on the WY plane, turning the camera to look towards the fourth dimension.

The raytracer can be found here, along with a much longer explanation: https://van-dillen.itch.io/slicing-4d-raytracer



A video of the camera rotating on the WY plane