[Asraelite]

Would voxels be easier than vertex-based meshes?

I can imagine you'd have the problem of stray floating voxels then, which isn't as noticeable when it happens with 2D pixels.

[janekm]

The “hot new thing” is NeRF, neural radiance fields, which can take into account the way light interacts with the object (and hence you can correlate data from pictures taken at different angles)