In your final example was the vector displacement map taken from a laser scan?

Vector displacement maps are usually baked from a high resolution model onto a low resolution model. It would be hard to capture a vector displacement map with laser scanning because the laser would be blocked by any overhang in the scanned object’s surface. The only scanning that I believe could be practically baked to a vector displacement map is photogrammetry, as you could scan the object, then retopologize it, and bake the vector displacement map from the scan to the retopologize mesh.

Ya know, you might be able to. I’m not very familiar with laser scanning, so I’m not sure how it works, but I suppose that could be a possibility!