Given an complex shape that has unwanted inner structure inside the skin, I'd like to create an outer 'envelope' of the surface that ignores that internal structure. e.g. imagine a bunch of intersecting pipes, and wanting a solid that is just the outside surface, rather than the interior mess of walls at pipe-join spots.
So I'd hope to lose the non-manifold bits and end up with a sealed structure. On a simple shape I can do it manually, but on a complex one it would be prohibitively time consuming.
I've heard there's a shrink-wrap function somewhere, but I assume if you did a shrink-wrap of say a square bird-cage, you'd end up with a cube rather than the open space for the bird, which I'd also need.
Rgds Ross.