do you mean shelling? If yes, then the answer is no. Shelling is not yet available as an SDK function (the command itself is still under a lot of active development) so I cannot access it from Grasshopper.
There is an option in Rhino when offseting a surface which is called "solid" and is very useful to get closed polysurfaces. Is this the same as shelling? i think "shelling" would take into account polysurfaces and boolean everything to make one volume which is even better.
In the example i posted i have offseted two surfaces on each side of a set of surfaces and then extracted their wireframe which i grafted and lofted. I joined the whole thing and hoped i would get individual solids for each box-like members of my grid. Unfortunately the surfaces joined a bit randomly and i didn't manage to get the solids i wanted.
Do you think i could re-organize my surfaces so as to make sure the surfaces defining solids join correctly?
There is a 3d direct modelling software called SpaceClaim which has a Rhino3D V4 Plug-In.
I've never used it and don't know anyone yet that does, but I saw a video titled "Rhino SpaceClaim Video" on http://www.spaceclaim.com/rhinovideo
Maybe it is helpful to export polysurfaces / B-REP from Rhino to Spaceclaim, then offset them there and then reimport the shell / solid to Rhino.
But I don't know how efficient that would be in terms of workflow.
The development of the Rhino shelling command which David mentioned sounds promissing.
Hi guys...
I have been on the lookout for this as well..
"Shell" in 3dsmax is the same as OffsetSurface - Solid in rhino, so I guess we all concur.
Maybe it could be done as a script component?