3D drawing applications?

[Al Globus]

I'm looking for a good, commercial quality 3D drawing package for the
IRIS. The primary requirement is for a sort of 'MacDraw' that does 3D
resonably well. A secondary, but important, requirement is the ability
to dump out the
vertexes of surfaces in some more or less reasonable format so they
can be manipulated.

Any ideas?

Thanx.