film offset / lens shift support for ssaoOnPause

we are using viewOffset, to shift the camera center, similar to the lens shift in blender. unfortunately, this does not seem to work in combination with the app.ssaaOnPause feature, as it resets the shift / offset, when it starts sampling.

support for this would be appreciated.

also, on slow devices, the ssaoOnPause can freeze the device for some seconds, so interaction is locked during that time. it would be nice, if it could cancel out of the sampling, when a new input is done by the user. not sure if this is viable on a technical level though.