For example, a 3d cube that can be rotated and scaled.
Once 'set' the object would be translated to a set of vector lines
or shapes.

I am not talking about complex textures or lighting, only the ability
to quickly create whole vector objects with proper perspective,
and maybe scene placement.

I know Xara does pseudo 3d, but what I intend
is to model in real 3d, and convert to real vector.