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Originally Posted by Type941
 Looks pretty visible to me.
<pic snipped to save bandwidth>
The USS Chicago, a Los Angeles-class attack submarine, glides along
at periscope depth in the western Pacific Ocean off the coast of Malaysia. |
From what type of craft, at what altitude, at what relative speed to the sub and with what photographic equipment was that photo taken? Pictures don't always tell the story.
The fact that it's leaving a bit of a wake would help spotting, but notice that the angle of the shot is almost directly down on top of the sub in smooth water. Add a bit of an angle (so that more light is reflected off of the waters surface) and a bit more chop to the water (so that more light is refracted both on its way to the sub and its way back) and the sub would not be as visible.
The real problem is modelling (in game) a sensor that can duplicate (within reason) the human eye and brain's ability to detect an object underwater. The games visual sensors don't see underwater (unless you use a variable designed for something else to fool the sensor into seeing an underwater object, in which case you end up with a completely uncontrollable "x-ray vision" that is impervious to light/sea/depth conditions). So far, other sensors haven't worked either (yet).