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Provide low-res peripheral vision with high-res center vision
Playing a first-person shooter, it's sometimes easy to get
shot from the side without even seeing the person. In real
life, people have a far better angular range of vision than in
most first-person-shooters, but peripheral vision is not as
good as vision in the center of the field of view. Proposed
a fisheye perspective to increase the field of view without
sacrificing longer-range resolution.
Prior art [kevinthenerd, Jul 09 2010]
Aliens vs Predator (1999 PC game)
In this first person perspective game you could choose to play as the "Alien" and it had a fishy-eye type viewpoint. It's not full-on fish eye, but there is a level of distortion there. [Jinbish, Jul 09 2010]
||It's a trade-off. You'll get a better side view, but you'll compromise everything in your front view expect dead-ahead. Good alternative view for a trigger though. [+]
||You wouldn't need to mimic a fisheye lens exactly. You
could keep the central 80% completely undistorted, and then
have steep compression in the peripheral side part at the
edges of the boundary border, around the edge.
||There was also "Thief : Dark Project" (or maybe the sequel), in which the main character could could throw a 'scouting orb'. This orb was kind of like a camera grenade, and upon throwing, you could then see from the orb's point of view. This view was very fish-eye - but also very static and not actually used during normal gameplay.
||Hmm... the only way I ever got kills in first-person shooters was by exploiting the absence of peripheral vision in others. This is clearly a good idea in itself, but I find it hard to like.
||I presume you all know about Fisheye Quake.