Posted: Nov 13, 2015 4:53 am
by Macdoc
We used Sweethome 3D and I did this several years ago.

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http://www.sweethome3d.com

I suspect its much better now - it's opensource and free....needs power to render

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I like the way you can set your location to see sunlight etc. It's fun.

This is the open source CAD version

http://www.freecadweb.org

example

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lots of samples here

http://www.freecadweb.org/wiki/?title=Screenshots

I've heard good things about SketchUp as well.