I want to engrave a motif on a cup shaped like this. Should I distort the image so it's broader at the bottom to keep the aspect ratio of the flat motif or is that not necessary?
in general I wouldn't, but it might depend on the size and shape of the image
Another problem, how do I make a template for the engraving? I guess I have to do it like a map projection but that looks like a huge pain in the ass.