Sorry I broke the 'real time thread' - I had to walk the dog.
Gemnoc has it correct, I used STEP but the transfer is really quick and you don't need the intelligence anyway.
I also tried Luxion Keyshot and that is also quick.
A 15 day trial is available, and that's what I had on my laptop. You get a few backgrounds with that trial but can't save the renderings or any of the setup. You need to do a screen-grab to keep the image but the results are just as good.
One thing I haven't found in either program is how to zoom in on small parts, other than by scaling the model.
This one was done in KeyShot, saved as a screen grab then clipped with Paint, so no post-processing. It took a few minutes to set up and apply the materials and get the scale and orientation about right but rendering time was only about 3 minutes on 2.1GHz Core2Duo,4MB ram laptop.
The trial has run out now.
bc.
2.4GHz Core2 Quad, 4GB RAM,
Quadro FX4600.
Where would we be without sat-nav?