Hi,
This was also a great disappointment to me. I don't like Bimx, especially as I cannot control what the client sees. I have, however, found what I consider to be a great alternative to Bimx, and it provides the same kind of operation as QTVR did. And the best part is that you can specify the output as either flash or HTML5, which means that it will work on Ipads, etc. as well.
That said, it does not offer the same simple integration as QTVR had with Graphisoft. So there is some fiddling to be done, but it hasn't turned me off.
I am still in the process of polishing this, but here is an initial sample result that you can view of one of our recent projects still in the design stage. No materials applied, just wanting to take a look at form.
https://sites.google.com/a/williams-partners.com/jones-residence/home/spins-1/jones-cardboard-3.swf?...
Please note that you should just ignore the control buttons on the bottom, EXCEPT for the one on the far right-side. That is the full-screen mode, and it is pretty impressive to open that one up. To move the model, simply put your mouse over it, click (hold) and drag it whichever direction you want to go. Use your mouse wheel to zoom in and out.
I should also note that I no longer use Lightworks to render except for very early design development stages. Yet, with the right settings and computer, I think that Lightworks could spit out the images you need in a fairly reasonable amount of time. For the "Spin" I did with the link above, the ouput images were 1920 px by 1080 px, and I think there were 216 of them in total. It took my machine about 45 minutes to crunch out all the frames. After putting all the frames into the Spin software, it spit out a 17 MB flash file, which is quite reasonable. And, I think that you could do these Spins at much lower resolution, say 1024x768 or so. And that would cut the render time to 10 minutes.
If anyone is interested in more details about this Spin software, let me know (I am not the developer).
Best,
Foster