How do you Control the Exposure Levels in the PiCam?

Hi all,

I am using a PiCam Rev. 1.3 with a Vidor 4000. I’ve successfully used the example sketch ‘VidorEnableCam’ to display real-time video.

I was wondering if anyone could provide some guidance on how to change the exposure levels of the PyCam, using the Vidor? I’m guessing there is a MIPI command, set by changing certain registers? My goal is to change the exposure levels every frame, so that after 3 frames, there will be 3 different exposures, which I am looking to use to implement high dynamic range image processing.