Find out the new faces after a boolean/local operation?

Hi all!
I've a compound solid/solid object called Shape1 and I use a boolean operation (with another topo shape) or a local operation (such as Prism, Revolve...) for this shape. I get a result shape,called Shape2.
And my question is: How can i get the new faces has been added to Shape1?

m-aronsson's picture

Hi !

Short answer, you can't. The original faces may be gone and replaced with one or more new ones, some faces may be gone and some new may have been added, but I do not think there is a reliable way to find out what the difference between the old and new shape is.