3d modeling copyright and Industrial design rights

["Alessandro Argentini" <argento3k@gmail.com>]

I want to ask if it is legal to create 3d models (with programs like
Blender) of industrial objects like furniture, cars, electronics,
architecture, etc. and distribute them under an open source license.

Are such objects protected by copyrights? Do industrial design rights
affect the creation or distribution of the .blend files of such
objects? Is there any other legal measure that restricts the creation
and redistribution of 3d models?