Ssenkahdavic said:
120hz/60hz (hz = cycles per second) and fps are two very different things. Most tvs flicker at 60hz, so those 30fps games are drawn with 2 frames (or 4 times for 120hz tvs) per cycle. This makes motion look more natural. If your TV flickered at the exact same rate as your 30fps game, you/most people would suffer pretty bad headaches. This is why most lights in your house flicker at 60hz. A blueray (in NA atleast) is 24fps. For a 60hz tv, those images are drawn in a 3:2 ratio (first 3, second 2, etc per pass). 120hz takes away this problem by 120/24= 5 (a whole and easy number) so no need for 3:2 pulldown. For 3D, as they are saying, 120hz will be split twice for both of your eyes. Either by 1 full signal of 1080p/720 @120hz or two 1080/720 signals @60hz (for each eye). Or if they use Checkerboard, they only need half of the full resolution per eye (still at 60hz)
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Im a lil too tired to explain properly, but what u write doesnt indicate anything special for 3D.
If say my TV or monitor is 100hz pr 60hz what does it matter when I usually aim for 30 frames per second in my PC games and it looks fine.
The question still is, why need 60 fps for 3D games (yes actually 120fps, but 60 for each eye) when 30fps is perfectly enough in normal games?
