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A Closer Look At The AimTrak (with video goodness)
KissMyWookie:
--- Quote from: brandon on October 23, 2009, 02:11:57 am ---wow.. that makes way too much sense! why didn't I think of that :)how about for the ultimate add a second sensor at the back of the gun either near the "hammer" or under the "clip" Then you could pivot the gun in place or move in perpendicular to the screen and it would always know its angle and position in 3D space buy comparing the data from two points in space. Thats getting overly complicated I know :)
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:dizzy:
My point was that it is possible to match the ease of use (distance/calibration/accuracy) of the newer arcade lightguns, without having special driver circuitry or complex synchronization between each corner emitter. The emitters would be statically lit IR LED's, with only power going to them and the aiming calculations would be performed "in gun", as they are on the Aimtrak now.
Ginsu Victim:
--- Quote from: KissMyWookie on October 23, 2009, 01:57:53 am ---
If there were 4 IR emitter boards, each identical and "L" shaped. They could be placed around each corner of the monitor and the gun firmware would know exactly which corner it was looking at by the orientation of the "L".
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Damn, that sounds like it might work. I don't know the technical side of it, but it does make some sort of sense.
brandon:
--- Quote from: Ginsu Victim on October 23, 2009, 08:33:33 am ---
--- Quote from: KissMyWookie on October 23, 2009, 01:57:53 am ---
If there were 4 IR emitter boards, each identical and "L" shaped. They could be placed around each corner of the monitor and the gun firmware would know exactly which corner it was looking at by the orientation of the "L".
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Damn, that sounds like it might work. I don't know the technical side of it, but it does make some sort of sense.
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unless you tilt the gun "gangsta style" lol Then your upper left corner becomes your upper right, etc. Personally I never do that so... I guess you could add a gyro sensor ;)
Neverending Project:
--- Quote from: RayB on October 23, 2009, 12:16:33 am ---Does this device see "rotation" too?
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By "rotation" do you mean if you were to extend a line out of the gun barrel and pivot the gun around that line? If so, then yes, to a small degree. There is a setting in the AimTrak software to compensate for this called Tilt/Z Correction. You can turn it off (smooth mouse movement but goes uncalibrated when you tilt the gun), Intelligent (it applies correction intermittently, so if you hide the cursor you won't notice) or Continuous (jittery mouse cursor, but continuously applied correction).
I played with it a little, and it certainly makes a difference, although it does not allow you to use the gun sideways (gangsta style?), ,nor would I recommend tilting the gun excessively in any normal gameplay if you want to keep where you aim. If you use the crosshair, then it may be fine.
AndyWarne:
--- Quote from: Ginsu Victim on October 23, 2009, 08:33:33 am ---
--- Quote from: KissMyWookie on October 23, 2009, 01:57:53 am ---
If there were 4 IR emitter boards, each identical and "L" shaped. They could be placed around each corner of the monitor and the gun firmware would know exactly which corner it was looking at by the orientation of the "L".
--- End quote ---
Damn, that sounds like it might work. I don't know the technical side of it, but it does make some sort of sense.
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The problem with that is if the gun were able to see all four corners that would be simply too many LEDs for the image processing logic to handle. The problem with these kinds of approaches is the gun has to be accurate whether it can see one, two, three or four of the groups of LEDs.