I tried to do a snowboard deck as practice, and to make things even on both sides, i added the mirror modifier. But after the mirror modifier was applied and i tried subdivision surface, i got this:
As if the two pieces (the original, and the mirrored) were still two separate pieces, and not joined into one mesh.
The following picture shows the middle of the deck before subdivision surfacing, the mesh is actually one part, i didn’t accidentally leave the pieces separated before applying the mirror modifier.
So how do I subdivision it correctly now then?
(i don’t just want the smooth option, i really want subdivision surface to work)