Hi Has anyone else noticed this?  If I tilt the HMD up and down, or rotate left/right but keep my eyes on the same object, the brightness seems to slightly brighten or dim.  It does my head in.  DR1 didn't do this. I first noticed it when DR2 became VR on my RiftS on SteamVR but returned to DR because of performance issues, now started playing it on CV1 and Oculus VR and same issue Is this caused by a hidden setting that I can turn off?  Is there anyway of removing it? Thanks