Thank you Hans!
I'll try the YafaRay plugin.
CMS

So, now I have created my floor plans (Thank you for all your kind help) and it is time to create a video for presentation.
Done the view points and then press the create button..... It will take all of 2164 hours to create.
Thought I did something wrong, redid it; same result.
Asked someone else ...

Why, oh why, does SH3D keep freezing on me???? I am at my wit's end with a complicated floor plan that I need to submit to a client, but what should have taken me 3 weeks is now rolling towards 2 months! Please help?!