This is the second 360° trailer to land in the same amount of weeks, Hellblade did it back then and now it’s the turn of Total War: Warhammer to pretend it’s Google Streetview and let you move the camera about.
Unfortunately adding the 360-ness to the video seems to have completely screwed the quality, it looks more like 480p to me, rather than 1080p.
Source: YouTube
