I have a surface and two rectangular cross section objects running through it. Boolean split in V4 would cut rectangular holes in the grey surface leaving them still there, click and delete sees them gone. It would leave the red cutters as red cutters, no grey shapes matching them would get made.
It is not a making process but a cutting process.
V5 in fact makes surfaces , sort of extrudes them, my red cutters have gone 50/50 grey red. darag and separate out this and I havent punched holes in the grey sheet. its got new structures added to it.
This never did that in V4
SteveBooleanSplitCreatesMore.3dm (374.2 KB)