Only shows transparent objects (Score 1)

Judging from the technique I expect it can only show transparent objects.

Each voxel is displayed for a short time and is at this time unobscured to the viewer. So every voxel along a line of view will be visible for a short time period. Your perception will fuse all the voxels displayed in your line of view.

I can't think of a way to display a solid object without knowing where the viewer is.

This may be a drawback for some applications, but is an advantage for others. Could be very useful in medical imaging.