Shademap for stereo 360 animation

[squintnic]

Doing 360 animations at the moment and the insane render times for dual 4k to get stereo is killing me leading me to shademaps after forgetting about them for a long time.
Is it one shade map for the entire scene if you are doing say a 30 second fly through sequence?
Thanks

[squintnic]

ok looks like would need to generate one every frame then re-render that frame using the saved cache excluding the glass.
can they be precalcd with AA pretty much off and filtering off? cant quite get my head around the usage