Originally Posted by bigz I think the way they'll do it is to focus on where the crosshair is pointing - I can't think of any other way that they could implement this.
I agree that is the only really viable way of doing things. A movement-based system couldn't work where there are multiple moving objects, and an eye-tracking solution is hugely impractical, though it would be cool.
So long as the effect is not overly pronounced, i.e. the depth of field is kept quite wide, I would not expect gameplay to be badly affected. You would still be able to see the distant guys when focusing on close up action, they would just be slightly out of focus.
Of course, added realism could be achieved if the depth of field were linked to aperture/exposure changes - a wider aperture means a narrower depth of field, so indoor scenes with low light would have a more pronounced depth of field effect, while more brightly lit scenes (outdoor, where greater depth of field might be necessary) will result in a narrower aperture and a correspondingly wider depth of field and less pronounced blurring effect.
Sniper scopes should have a fixed focus at infinity and a very narrow field, so anyone walking in front of a sniper, or any objects in the way, should be very blurred. This would not adversely affect gameplay, since you will generally only be using a scope for very long range shots.
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So long as the effect is not overly pronounced, i.e. the depth of field is kept quite wide, I would not expect gameplay to be badly affected. You would still be able to see the distant guys when focusing on close up action, they would just be slightly out of focus.
Of course, added realism could be achieved if the depth of field were linked to aperture/exposure changes - a wider aperture means a narrower depth of field, so indoor scenes with low light would have a more pronounced depth of field effect, while more brightly lit scenes (outdoor, where greater depth of field might be necessary) will result in a narrower aperture and a correspondingly wider depth of field and less pronounced blurring effect.
Sniper scopes should have a fixed focus at infinity and a very narrow field, so anyone walking in front of a sniper, or any objects in the way, should be very blurred. This would not adversely affect gameplay, since you will generally only be using a scope for very long range shots.