Fusion 360 3d rendering

Hi All - I've been really impressed by some of the 3 d rendering people seem to have created from bitmap images - I have a small 3020 CNC router and use fusion 360 - I've got no real idea how to create some of these lovely bas-relief carvings - can anyone share with me the secret ?

Google "image2surface". Its a free add on for using grey scale images with 360. There is a tutorial on youtube also.

OK - thanks I'll look into that