Best 3D engine for flash

Just wondering I wouldn’ve made a poll but i didn’t rly know anything about 3D engines in flash. I’d thought this might be an interesting topic, and i was wondering what kinds of things flash can do in 3D, i’ve looked around and found nill, so what amazing things have you found, i saw a thread similar to this awhile back, but i don’t know where it’s gone too now. It had a fully 3D rendered fps game made in flash. I would like to know if anyone has seen that some other great 3D accomplishments in flash