The Opus ambisonics stuff is cool, I think it would be interesting to use ambisonics for emitters in 3D environments, but I have no idea how computationally com

The Opus ambisonics stuff is cool, I think it would be interesting to use ambisonics for emitters in 3D environments, but I have no idea how computationally complex this would need to be before it produced good effects. Inverse ambisonic recording (i.e. measuring emitted sound from outside the focal point, rather than attempting to record from the focal point) is considerably easier than real ambisonic recording.