Snapping Tools

On Total War: Three Kingdoms I was asked to create a 3ds Max tool to snap vertices to a virtual grid.
Snapping tools are available in 3ds Max but the request was to make a new set which were more reliable and intuitive to use.
One of the more novel features I added was to give the option to base the axis on the viewport and not the world matrix. As an example, a camera view-aligned to a left view would treat the X axis as a horizontal snap, as it also would from the front view.