Sounds Unreal?(sorry for the bad pun, am German) Well, did you know that the Human eye only percepts approx. 2° of it's total vision(110°x170°) clearly? Through multiple jumps per second of the eye(saccades) we combine the sharp spots(highest bitrate/secondmm²) in our brain to an overall sharp and steady picture.
My question is: Using a given high end 3d-Graphic-Card and an Eye-Tracker, one could concentrate half of the Render Power on this spot, which is usually displayed on a 20 to 40 ° degree screen. So take the worst case: 0.5 20°/2° * 20°/2° = 50. And there is my factor 50.
So why aren't we using this device: The Eye-Tracker cost about 15000 to 40000 $. And lots of the Render-Force is used for focus independent Rendering (reflection, etc..).
But: The price could be reduced by mass-production within a few years to 100 $, and probably 10 % of the Render-Power would last for the non clear vision degrees, so one could take 40% for independent rendering.
I came up with this idea after understanding objects and though about how the brain could save render power by only checking parts of a new object and recognizing it as real, and afterwards simulating it in its own Semantic-3d-Room Matrix-Engine.
Post me if you find the idea cool, have questions, or tell me that I am far outdated(never heard or read about such a application)!
Regards