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Hi all, have somebody thought about simulating the accelerometer using the phone camera? It's possible?
I couldn't find anything about this, sorry, but i'd be really happy to know that there's someone coding something like this...
PS: sorry for my poor english
i dont see this happening at all... i mean a image is produced by using light... how would that information tell u which way or which angle the phone is on :S
CashMoney18 said:
i dont see this happening at all... i mean a image is produced by using light... how would that information tell u which way or which angle the phone is on :S
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Ok, but as the image moves the phone could know how am i moving it
Theoretically, it is possible. It would just be a huge battery sucker and not too accurate. I came across this game a long time ago, back when I still had my Titan (no accelerometer). It is called 3D Lawn Darts. It uses the camera to control your throws. Check it out:
http://www.brothersoft.com/3d-lawn-darts-for-pocket-pc-133547.html
dwizzy130
CashMoney18 said:
i dont see this happening at all... i mean a image is produced by using light... how would that information tell u which way or which angle the phone is on :S
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It could work but only in a room covered with reference points all over the walls and floors like they use in 3D capture! LOL
I think the phone proccessor would choke on the proccessing! lol
there's a free app (i think) called CCSnake. Search for it. If you can't find it. Then search for Camera Controlled Snake. I tried it but the controls are not that good.
Asphyx said:
It could work but only in a room covered with reference points all over the walls and floors like they use in 3D capture! LOL
I think the phone proccessor would choke on the proccessing! lol
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well not really.
Camera take as picture, then asks the user to set a referance point. somthing that stands out. It takes detaisl of that area (color shape, etc)
all further images are taken and referanced to that point. and the program then knows which way the PPC was turned. if you want rotaion then you just need two points.
For all movements just 3 referance points are needed.
This is very basic movemnets and your limited to the area you are in as the camera must see the original points. but it would work.
i saerched for this a long time and tought: maybe you can do it with an other part of the phone.
or maybe you can make a program to use this as a normal g-sensor with new accelerometer software.
erik
There was a game that I had on my old Motorola E815 that did just this. I think it was like a marble tilt game...it worked fairly well as long as you didn't move too fast and it wasn't too dark (or light for that matter, as the camera on the E815 was really mediocre).
Has anyone noticed this? Wherever there's something to scroll, web pages, menus etc., the motion is sort of stuttering as long as you keep your finger on the screen. When you release your finger and "throw" the page, it goes smooth. This makes me think that it's not a graphic performance issue, but it's more like if the resolution of the capacitive touch screen was lower than the actual display. I hope I'm wrong and it's software related...
Software related, doesn't always do this.
Edit-
On second thought I am not sure, sometimes it does this really badly and other times it is completely smooth. If we didn't have full resolution touch you would notice it on a multi touch test app.
Sent from my GT-I9000 using XDA App
I think I have found the cause.
Cpu scaling!
Lock setcpu to 1 ghz and it is much smoother.
What is happening is the cpu speed keeps throttling and jumping back to full speed causing problems
Sent from my GT-I9000 using XDA App
Actually...still unsure...ideas anyone?
Sent from my GT-I9000 using XDA App
"Problems" with CPU speed jumping up and down? Those are not problems but a design decision (jury is still out on whether the implementation is done right) to save energy.
Of course you can crank everything up to the max and never put peripherals or the CPU to sleep, but please don't start complaining when your battery runs flat before the day is done.
They set the ramp down cpu speed timer far too short. This can be modded in a kernel anyway.
Using a multi touch test we have at minimum 600x300 touch resolution, way more then enough to have lag free scrolling.
There's an acer android phone out with only about 32x 24 touch resolution. They manage
Sent from my GT-I9000 using XDA App
I don't think it's related. I'm experiencing this even with the cpu locked in performance mode. On the other hand, using a multitouch test app, I was able to move a pointer pixel by pixel at what seemed to be the screen's full resolution, so touch res is not the cause.
It's quite annoying cause even if you want to launch a fast scroll of, say, your contact list, you get that initial ugly small stutter... when browsing the internet this ruins the experience even more, since you are likely to keep your fingertip on the screen more.
Dunno about you guys but uninstalling Gesture Search by Google fixed it for me.
Never had that on my phone...
Bump... am I the only one bothered by this?
Am I?...
Rizlo said:
Am I?...
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Could be, I had a HTC HD2 and it suffered from that problem alot. numerous videos have been posted on youtube because of it as well.
One possible way of minimizing the problem is to electrically discharge your screen, by putting an electric conductor, such as metal on it to remove and negative/postive ions still hanging around. Read that up somewhere and it somewhat helped my HD2.
Personally i have only experienced once on my Sgs and have not been able to replicate it since.
If you have big fingers that could also be a problem as the touch sensor can't decide on where to locate your finger...
Thank you for your answer! The electrical conductor you mentioned should go somewhere to discharge though... I can't walk around with a ground wire hanging from my phone all the time Plus, I really believe it's software. I know it always goes there but... iPhones have similar technology but they always scroll smooth. maybe it's interpolation we're missing here.
Btw I have particularly small hands!
Discharging it only has to be done only when the problem seems to be worsening. just try not to place your entire thumb on it but rather use the tips of yours fingers, that way it doesnt jerk.
I have to say this problem is pretty consistent, hence not worsening (or improving) whatsoever in any circumstances. It's just not fluid, ah my Touch HD used to be, but that was because of poor GPU (driver); we know that can't possibly be the case here, and as a matter of fact, regardless of load, stuff in the background etc, it's there all the time.
But as soon as you release the fingertip, the "inertial" part of the scrolling just goes as smooth as possible.
So I'd dismiss the electrostatic explanation, it seems like it was a non-interpolated low touch resolution... except that it's not...
Hi Folks, I have noticed the same problem running eclair 2.1 with Ryan's one click lag fix applied (the lag fix did speed it up quite a bit too!). It seems to do it after coming out of 'sleep' mode i.e when I wake it up from blank 'screen saver'. After a few scrolls or taps it starts to smoothen out a bit, but still not as I would like it to be.... Just my observations and sorry I can't offer up any Solutions... Any word if 2.2 update will make things better? Also, does anyone know when the update will hit Australia?
Welcome to android world, iphone users.
The world where not everything is super-smooth.
Actually it might be related to smoothing of touch input. Btw my scrolling is quite ok, but I come from Sybian world, world of lag.
xan said:
Welcome to android world, iphone users.
The world where not everything is super-smooth.
Actually it might be related to smoothing of touch input. Btw my scrolling is quite ok, but I come from Sybian world, world of lag.
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'smoothing of touch input'? could you please expand on this?
BTW - I Never owned an iFone, and don't really go for it's comunistic ways... (although some people take comfort in it! )
Hm, touchscreen sends raw data to driver (noisy, with peaks) to driver. Driver cleans and interprets them.. (unless its done in TS firmware)
I think that more cleaning and smoothing at this stage would result in smother scrolling, but not-so-precise tracking (when drawing, etc).
I'm just speculating here, because I have no real knowledge about this.
OK... Although it seems like there is a delay in reloading to short term memory when coming out of hibernation? Would this sound like a place to start looking? if so, anyone have any ideas on how to manipulate this function?
As the title mentions, touchscreen response on my A70 seems laggy or jumpy when playing AB.
Basically, when trying to do the fine adjustments to aim, the A70 wants to jump around several pixels worth of movement. (sometimes up to about 1/4 the hight of a bird) On my Nexus 1 and G-tablet I could adjust aim down to pixel sized movements.
It may be due to being close to the screens edge, but I was wondering if anyone else has noticed this. It is not a constant issue, but touchscreen response definitely seems less precise all around when playing the game. Most other apps I use do not need such fine adjustments, so I can not tell if this happens in them as well.
Edit: Downloaded a multitouch tester. (multitouch vis test) This app plots your finger with x,y cords and a visual dot. When moving slowly, both tracking methods made small jerky hops rather than following my finger smoothly. I have never had this happen with any other android device. And yes, I did try the screen calibration in settings several times.
No one else have this problem?
I have this as well... pretty annoying.
Sent from my HTC Legend using XDA App
If this is common, then thats unfortunate. If it is rare then we know that we need to talk to archos support.
Are you in fw 2.0.71 ? I think is firmware related problem. I downgraded to 2.0.54 and have much fewer problems. And a faster a70 (z4root and SetCPU 1000mHz)
Hi there, first Message from me and first Touchscreen device...
i think it is because the wires of the touchscreen are not so close together.
When i look at them, the distance of them seem to compare to the "jumps" you mentioned.
But i have no other device to look at.
Are you using an App Killer before starting Angry Birds? I use the System Monitor to kill all unneeded applications to get at least 90 MB of free RAM before started Angry Birds and it runs very smoothly with excellent response from the touchscreen.
Bye.
CrunchyDoodle said:
Are you using an App Killer before starting Angry Birds? I use the System Monitor to kill all unneeded applications to get at least 90 MB of free RAM before started Angry Birds and it runs very smoothly with excellent response from the touchscreen.
Bye.
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No, but the multitouch test app is not a RAM heavy app and it also has this problem.
Marine6680 said:
As the title mentions, touchscreen response on my A70 seems laggy or jumpy when playing AB.
Basically, when trying to do the fine adjustments to aim, the A70 wants to jump around several pixels worth of movement. (sometimes up to about 1/4 the hight of a bird) On my Nexus 1 and G-tablet I could adjust aim down to pixel sized movements.
It may be due to being close to the screens edge, but I was wondering if anyone else has noticed this. It is not a constant issue, but touchscreen response definitely seems less precise all around when playing the game. Most other apps I use do not need such fine adjustments, so I can not tell if this happens in them as well.
Edit: Downloaded a multitouch tester. (multitouch vis test) This app plots your finger with x,y cords and a visual dot. When moving slowly, both tracking methods made small jerky hops rather than following my finger smoothly. I have never had this happen with any other android device. And yes, I did try the screen calibration in settings several times.
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please try: Settings->Repair->Touchscreen Calibration
Hi _nz_
Did you read the op last sentence.
"And yes, I did try the screen calibration in settings several times."
I have noticed this same issue on my 70.
Hmm, maybe I should start a poll. Try to get a rough guess at the ratio of those with and without this issue.
I also have this problem with my 101. Sometimes the game has frozen completely. I mean freeze as: the screen freezes but the game continues. I can hear the audio still. If I am firing off a bird it will freeze and I can hear the bird continue to fly and break things but can't do anything about it. I have to exit the game and then jump back in. Really annoying when you are at the last move to beat the level. :-( There doesn't seem to be any fix that works for me of the things I've tried. Very frustrating. Still love the unit though!
I don't see this issue on my 70. I'm not too good at ab though, maybe that's the reason.
I see the same issue on my 101. Hard to make fine adjustments.
CrunchyDoodle said:
Are you using an App Killer before starting Angry Birds? I use the System Monitor to kill all unneeded applications to get at least 90 MB of free RAM before started Angry Birds and it runs very smoothly with excellent response from the touchscreen.
Bye.
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Agreed. Kill other apps to gain more memory before playing AB. It will then plays smoothly.
Sent from my A70S using Tapatalk
bthoven said:
Agreed. Kill other apps to gain more memory before playing AB. It will then plays smoothly.
Sent from my A70S using Tapatalk
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This has nothing to do with the game not playing smoothly. It is about touch screen response. I have the same issue when using a 150kb multitouch visualizer app on a fresh reboot.
Take your Xperia Play box in your hands and look at the main side (big XPERIA PLAY and two photos of the phone). Look at the second, right photo and look at the place near right trigger. See little engraved Camera-shape?
It means that the right trigger might be planned to be used as shutter button for our Plays but in some reason this idea was withdrawn and original Plays are without this engraved shape. I wonder why
Surprised? I am
Cheers!
You are correct. Nice find.
I am just surprised that this function was not included in the phone. Seems like a basic camera function on a phone like this.
Yeah awesome find dude. I am also surprised this was not included on the actual phone.
My right button trigger takes photos, you guys now theres a mod for it on these forums right?
swebosdev said:
My right button trigger takes photos, you guys now theres a mod for it on these forums right?
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Yes. That mod bugs out on me though. Ceases to function often so I rather not use it at all. Point is we shouldn't have to mod to get that function. It must have been officially planned at some point.
Yeah, nice find.. the L and R buttons look a little curved too
Whats even more surprising to me is you can pinch the screen and have an overview of the widgets, and you can shake it
Found that by chance when it was in my pocket :S
ff7fan4eva said:
Whats even more surprising to me is you can pinch the screen and have an overview of the widgets, and you can shake it
Found that by chance when it was in my pocket :S
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Yeah, pretty cool function. I've discovered it too, unexpectadely when I was testing multitouch. It causes a little jaw drop and jealousy in my friends' faces and they say the want it too on their phones (SGS 2, Galaxy Tab, Optimus 3D). Mwhahahahahaha >:-D
Also using two fingers is very helpful in scrolling up or down quickly if there's lot of a text or menu buttons (ex. Settings or text communicators, doesn't work in web browsers). You have to place them next to each other but not very close and slide both fingers up or down to scroll very very quickly. The position of displayed text is adequate to the position of the fingers - the end of options/text at the lowest part of the screen and the beginning of options/text at the highest part of the screen. Tried this on SGS and Optimus and these phones doesn't have that function, strange.
Try it if you didn't know about that
Camera mod for Xperia Play (found on Android Market) Works great for me
romcio47 said:
Yeah, pretty cool function. I've discovered it too, unexpectadely when I was testing multitouch. It causes a little jaw drop and jealousy in my friends' faces and they say the want it too on their phones (SGS 2, Galaxy Tab, Optimus 3D). Mwhahahahahaha >:-D
Also using two fingers is very helpful in scrolling up or down quickly if there's lot of a text or menu buttons (ex. Settings or text communicators, doesn't work in web browsers). You have to place them next to each other but not very close and slide both fingers up or down to scroll very very quickly. The position of displayed text is adequate to the position of the fingers - the end of options/text at the lowest part of the screen and the beginning of options/text at the highest part of the screen. Tried this on SGS and Optimus and these phones doesn't have that function, strange.
Try it if you didn't know about that
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Yeah figured that one out in the music player had about 700 items and thought how am I gonna get to zz top
simacca said:
Camera mod for Xperia Play (found on Android Market) Works great for me
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Yeah but it records HD in the 3gp container instead of mp4, bit annoying
It shouldn't be so, but pressing x takes photos.
That little camera icon and the Hdmi thing makes you wonder what else they got rid of.
Sent from my R800i using Tapatalk
ff7fan4eva said:
Yeah, nice find.. the L and R buttons look a little curved too
Whats even more surprising to me is you can pinch the screen and have an overview of the widgets, and you can shake it
Found that by chance when it was in my pocket :S
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I found that out but never shook... Going to try that now.
Sent from my R800i using Tapatalk
It worked but what does shaking do? What's the point? Not only the shaking, but the pinching/widget overview thing?
Sent from my R800i using Tapatalk
MilkyJoePD said:
It worked but what does shaking do? What's the point? Not only the shaking, but the pinching/widget overview thing?
Sent from my R800i using Tapatalk
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Shaking isn't needed for anything but tapping on a widget will bring you to that screen suppose it could save someone about a millisecond rather then switching screens
Hi guys
I seem to have a problem with the gyroscope on my nexus 7. I only noticed this when playing temple run, the character always veers off to the right. Has anyone else had a problem like this? Is it a known hardware issue and should I return the device or is there a fix for this?
Thanks
I had the issue on one and I have read quite a few accounts from other people too.
I tried all kinds of things to fix it myself and nothing worked permanently.
Returned it for a new one.
shaneydroid said:
I had the issue on one and I have read quite a few accounts from other people too.
I tried all kinds of things to fix it myself and nothing worked permanently.
Returned it for a new one.
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Ok thanks, looks like I'll be returning it then. Frustrating through, this is my second nexus already and I only bought the first one 2 weeks ago. My original one had a blown speaker.
This is the most ridiculous thing I've ever heard. Use some other tool to determine if the accelerometer is working, NOT GAMES.
Many games do the accelerometer VERY wrong. I have one game that works on one device but not on two others, no tilt at all on one, the other it's 90 degrees off.
Install this and find out: https://play.google.com/store/apps/details?id=com.miian.android.sensors
It takes about 10s to detect the sensors, just leave it alone.. then tap the accelerometer one and watch the graph, turn it one direction and watch the graph, etc through the various poles. There might be other apps out there to more easily visualize it, but this one will give you very detailed information.
khaytsus said:
This is the most ridiculous thing I've ever heard. Use some other tool to determine if the accelerometer is working, NOT GAMES.
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You must have lived a very sheltered life or stayed far away from any media for this to be the most ridiculous thing you have ever heard.
I don't see why to the lay person using a game that heavily makes use of the either the gyroscope or accelerometer would be ridiculous? Either way, the game worked perfectly on my first Nexus so I'm confident its not an issue with the game.
The accelerometer test in the Android Sensor Box app shows the ball falling to the right straight away when the app is opened with the device placed on a flat table. This correlates with what I have seen in Temple Run.
Using the app you recommended, well I'm not sure what it shows! Two lines stay in the middle of the of the chart whilst the blue line stays at the top of the scale (+8). No idea of this is normal or not.
I've got the same problem while playing GTA. Every other game i tried works nice. Can somebody confirm that it is a GTA specific problem?!
Sent from my Nexus 7 using xda app-developers app
Also suffering with this
Speedx is fine
Riptide gp steers to the right all the time when held properly. Have to hold about 30° to the left for it to go straight
Sent from my HTC One X using xda app-developers app