enter image description hereBoolean Modifier and Subdivision Surface

I am trying to cut numerous holes into a cylinder to create the barrel of gun. I used the Boolean modifier to cut the holes but now when I try to apply a subdivision surface to the cylinder I get horrifying results.

Would applying the subdivision surface first give better results or should I abandon the Boolean modifier entirely and opt for the knife project tool?

EDIT: Thanks to cegaton I am now able to cut the holes and use a subdivision surface. I still end up with an issue when smooth shading is applied though. enter image description here

  • I would suggest beveling the edges instead of using a subdivision surface modifier. – WorldSEnder Jul 14 '14 at 1:36
  • I tried adding a bevel modifier but it seems to not work on this object. Even if I increased the bevel width to a very high value no change appeared. – user5199 Jul 14 '14 at 1:40
  • I would try using the array modifier, using object offsent – GiantCowFilms Jul 14 '14 at 1:42
  • Try an edge split modifier after and play with the angle – Neil Jul 14 '14 at 8:11
  • See blender.stackexchange.com/q/734/599 – gandalf3 Jul 15 '14 at 0:30
up vote 2 down vote accepted

Invert the order of the modifiers, do the subsurf before the boolean.

Instead of this: enter image description here

Do this:

enter image description here

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