Hello,
rendering of scenes is really slow, I'd really like to see in almost real-time. Impossible? No, there is a free path-tracing engine, called Brigade (http://igad.nhtv.nl/~bikker/ ) which can do it (on nVidia CUDA hardware only).

It would be flabbergasting!!! I hope to see it implemented in Sweet Home 3D in the future...
Thanks

[;)]

Video: https://www.youtube.com/watch?v=OyY9pQEJkSk