One thing I've discovered as I've researched is that there is a marked difference between a HUD (Heads-Up Display) and AR (Augmented Reality). The HUD is actually a 2-D screen overlay on top of reality, in the sense that it is just a see through picture over the real world, and it moves with your head.
This is akin to the display in Crysis 2, a first-person-shooter, where the display is very minimal and only shows what the player needs to see.
Screenshot from the Crysis 2 PC Demo, image acquired from: http://www.gamespot.com/forums/topic/27592850/crysis-2-pc-demo-is-out?page=1
AR on the other hand, actually places information in the real world, well, it appears to. It's still a 2-D overlay on reality, and the display essentially still moves with your head, but the elements presented on the screen are going to stay with the objects in the real world they are displaying information on.
This kind of display is more like the video game Ghost Recon: Advanced Warfighter, where intel is displayed in the world, and is linked to specific items in the world, rather than to the movement of the user. As a result, specific items get "tagged" and have info displayed about them over them or next to them.
Screenshot from Ghost Recon: Advanced Warfighter, image acquired from: http://www.kotaku.com.au/2012/04/ghost-recon-future-soldier-has-a-horde-mode-too/
What I really want to create is a blend between the two. I want to have both a HUD and aspects of AR. Something more akin to the game series Halo. Here there is a blend of both in-world AR elements and a heads up display, creating an immersive display system that creates a sense of depth to the AR, while still maintaining the elements of a HUD.
Screenshot from the Halo 3 Beta, image acquired from: http://imageshack.us/photo/my-images/522/visorrefreshjpegbu3.jpg/
So now, I have to make my own!! Get to it, Sebastien!
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