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Forums - Sony - PS3 and Guncon3: Accuracy better than Wiimote?

I'd take a normal controler any day. That's what's going to offer you the best gameplay experience.



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Just an FYI guys, the wii remote can definitly tell the distance from the TV. It's called triangulation. As explained above, if you have two points of reference with a known distance apart and you introduce a third point (in this case the IR camera on the remote itself), you can quite easily measure the exact distance between those points of reference. This is the same way way GPS systems work.

For example....

Sensor Bar
50cm
X--------Y
\ a b /
\ /
\ /
Z

If you know that "X" and "Y' are say 50cm apart, and you can measure the angles "a" and "b" using the camera, then you can calculate the distance between X and Z, or betwen Y and Z, which gives you the distance.



@ fazz

1. Wii sensor bar has only two leds.
2. Your new avatar is crazy hot.

Based on my gameplay with MP3 I would say the Wii has some knowledge of its distance from the tv.

6 LEDs could give you more accuracy based on the software built into the device. But, I think it would essentially just give you a better range to use the device as more light is emitted.



@superchunk

1. Both you and me were wrong: The Sensor Bar has, actually, TEN infrared LEDs

2. Thanks, I know



I think the 10 LEDs are actually specific to the sensitivity setting on teh calibration settings. there are 5 settings, teh lowest of which would have 1 on each side of the sensor bar lit, while the highest setting would have all 5 lit.

 

this should allow you to adjust for external sources of light. if you notice that your cursor is wiggling all over the place as you move it, you probably need to turn up the sensitivity, because it is likely that the wiimote is registering the external sources of light and trying to use them as the sensor bar.

Or maybe it's down. it's been a while since I've had any need to adjust anything.

 

looking back over it, I'm pretty sure all the LEDs are on period when you turn on the Wii. if you have your cursor wiggling all over the place, you actually need to turn your sensitivity DOWN. this is usually caused by outside light that is coming in through a window and is being registered by teh Wiimote as points of reference from teh sensor bar, so it will bounce back and forth through all teh different points of light as being teh sensor bar. if you turn down teh sensitivity, eventually only the LEDs in the sensor bar should be seen by the Wiimote.



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AHHHHH!
I just typed about a million lines of text (may be nearer to 50/60) and when i clicked post i got some weird error...blast!



Dude its impossible the wii is so advanced that it can handle XBOX 360 graphics noo problem. Smg looks better than all the 360 and ps3 games combined, and the wii mote has Greentooth. The neewest available wireless communication system. The ps3 is $hit compared to the wii!!

Timecrisis 4 should be on the wii, the ps3 is a piece of $hit!!!!!!!



 

mM

Grrrr lets start again shall we....

@grey acumen....
you are correct in your last paragraph that all 5 LEDs (per side) are on all the time, i checked using the sensitivity settings and all five settings had all the LEDs on.
The sensor bar i don't think has any different settings for it's function, it is either on (10 LEDs) or off....clearly the sensitivity setting just alter the Wii remote camera, and how much IR light it needs to reference a point.
(i will copy this text so far...and post it to see if it works...then continue what i previously typed in a new post, or by editing)

editing in what i can remember....oh btw leo-j you are a tit, this has nothing to do with the graphics capabilities of any consoles...however i liked your greentooth comment, that was relatively funny (or titterworthy if you like)

ok...to continue...

again @ grey acumen, but your previous post....
The reason the Wii uses a combination of both tilt and IR sensors to detect roll (like in the Wii channel menu with the hand) is because it cannot distinguish between the two points of reference (one point composed of 5 LEDs) at first sight.... so for instance if you point the remote at the screen as normal [hand correct way up] then point the remote away from the screen [hand gone]...and finally if you then turn the remote upside down and again point at the screen, it figures out that it is upside down and thus the hand is upside down.
If it had to detect tilt using only the IR function and you did the same, when you return to pointing at the screen with remote upside down, it would not know that and still show the hand right way up.
The Wii can certainly detect 360 degrees of roll (tilt side to side) using only IR sensor...check on the sensitivity screen.... but it is only useful if you are constantly pointing at the screen. so not very practical.

more to come...

There is one thing the IR function cannot detect, and that is pitch (tilting backward/forward)...if you point directly at the screen and then move the remote as if at the edge of a huge circle (the axis of rotation being the sensor bar) it would think you are perfectly still until you get to too sharp an angle to see the IR lights.
this however is rectifyed because the Wii remote can detect pitch without the IR.

What i don't understand about the Guncon is whether these "6 LEDs" are in fact set up like with the Wii (all allong a single axis, and grouping them so it is still 2 points of reference) or if they are all seperate points of reference...I would assume the former, which means what he said is total BS seeing as the Wii has 10 LEDs to their 6.
If it is the latter, and there are 6 points of reference (and not all on the same axis), then it could be considered more accurate, but only assuming the Wii remote has not been calibrated.... having 6 points would mean positioning those 6 points around your TV screen, which would mean no callibration needed, an it would accurate enough to "look down the sights" of the gun and have the on screen reticule in the perfect place....this however would be flawed because if any of those 6 points moved (or worse, 2 of them moved) it would wreck the whole thing, and also because each of those 6 points needs power, so more wires, and more awkwardness if you ever move it to a different TV like i do with the Wii.

----------

With a proper callibration setting (able to callibrate the width and height of the screen, and something to adjust the height to co-incide with differences in distance between the top of the screen and the sensor bar (or the bottom of the screen and sensor) it would be just as accurate as if the Guncon had 6 or even 10 points of reference around the TV (which i am doubting because i think it will be just 2 like Wii)
Also it would be nice if multiple callibration settings could be saved, so if like me you transfer the Wii from TV to TV, you could simply choose "setting 2" or "setting living room" or something like that.

I would argue that, despite my own want for a callibration settings to be added to main Wii settings, it is really not needed for many games..... When you are pointing it like a gun then fine, you want it to actually point in the correct place ("looking down the sights") but when pointing from below eye level it is easier to be accurate when you have some leeway, with my small TV in my room if i "look down the sights" o the remote i can go 20cm to either side of the screen before the cursor goes off the edge, but i need that because without it, holding the cursor steady would be a nightmare as tiny movements would go halfway across the screen. (this wouldn't be a problem for those of you with huge TVs in your living room)



whew!, that was irritating, i think i got the same stuff accros that i did the first time, though in different orders. It might even be a slightly longer read.



I write all that out, twice!, and no -one comes back to the thread. *sad face* [see central bunny in sig]