This is how most 3D objects have been created since the beginning of time. It is a very powerful way to capture rich surfaces in models. It is very efficient, it aligns well with the hardware, allows you to have incredible detail and even animate.
Voxels can also have UV. This allows you to capture more detail at much lower voxel resolution.
The zebra at the right had an interesting life. It went from the artist made polygon into a full voxel representation. Then it went back to triangles just before rendering. UV coordinates were preserved along this trip, but there is a lot of trickery involved. These are different meshes.
Both models use exactly the same texture the artist made. This is the important part. You could draw both in the same draw call.
The voxel version has fewer triangles. This is a 100x100x100 voxelization. To give you an idea of how small that is, here is the equivalent of that in 2D:
At the right you see our results. The same amount of voxels can provide a lot more detail if UV coordinates are used.
I am happy with the results. To me this is as important as solving the physics problem. This will take the look of voxel scenes to a whole new level, while allowing you to harvest and destroy these carefully designed things.
This is still experimental and there are tricky issues ahead, like handling topology changes (holes closing.) and dealing with aliasing. For now I got to make a post with images of only zebras in it.