Iterating over all triangles in 3d primitive, will getUniqueFaces be enough?

Hello, I need to create 3d scene and then iterate over all triangles in it. I don’t understand, if I’ll make some array of primitives and then will use getUniqueFaces of ofMesh will it be enough? I’m confused by “list of triangles that do not share vertices or indices” in documentation, it looks like there will be list of not connected triangles and holes between them.