Rounded surfaces can cause the pattern to deform to fit the surface ... we’ve previously shown how Blender can be used to add textures to your 3D prints.

Liao and the team used a green 532-nanometer (nm)-wavelength laser to inscribe 3D patterns into tiny slabs of the doped glass. The intricate patterns, randomly chosen dots, symbols, QR codes ...

Liao and the team used a green 532-nanometer (nm)-wavelength laser to inscribe 3D patterns into tiny slabs of the doped glass. The intricate patterns, randomly chosen dots, symbols, QR codes, ...