[chiasmic]

I am by no means an expert, but I have thought about trying to visualise the fourth dimension. The issue is that we don’t really see 3D. While in 2D we can view every pixel simultaneously, when we view in 3D we have the issue of aspect and concealed voxels. You can’t visualise simultaneously all voxels of a cube, as most are under others or otherwise obscured. This therefore limits how much we can use 3D to mimic 4D. Perhaps if we were to spend more time with semitransparent objects our brains could learn to visualise 3D better and then maybe 4D.

[sarreph]

What an interesting idea! Have you ever produced anything for a representation of 4D with translucent 3D? I'd be very interested to see it...

[gitgud]

I'm not sure that could practically work. The problem, is that translucency would allow only a partial view of concealed voxels. As more voxels cover something, the translucent effect compounds.

Additionally, most voxels would appear different with different view perspectives. Due to more or less voxels covering them.

The problem is that in 4D all voxels are visible to the viewer. So viewing a 4D apple would allow you to see the apple from all possible view points simultaneously, including interior views.

To me it just doesn't seem possible to replicate this concept in 3D VR.