Recently I 3D scanned this beautiful rocky beach of a river nearby me. The rocks were pretty spikey!
The scan was made in less than 5 minutes with Asus Zenfone AR and the RTabMap app. The scanned area is something like 30m^2.
I post processed the scan in Meshlab, I used poisson reconstruction to close the holes and I made new UV map there. This is the result.