Hope you sort that - looks like a nice idea otherwise, just unusable for a game in its present state.
see - not bashing :) said it looks like a nice idea.
Surface count is everything speed wise - im suggesting looking at a different method. Im not comparing it to Quill either - yes i am a big fan but i didnt mention that Quill has seperate objects u can attach parameters too also, and vertex shaded objects too if you want - it has max flexability but minimises the surfaces on export - obviously things u want to animate are left as being their own surface. Anyways, this wasnt meant to be a contest, merely an observation and a suggestion.
BTW - I find your "sworn to secrecy" thing a bit nasty, no point being sworn to secrecy and then hinting at it because you are upset - thats not cricket really is it :/
Anyways - to conclude, wasnt meant to be a bashing but just remember all the vis, portal and occlusion techniques are to gain the max speed - games need to have the absolite min surface count is all i am saying.