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How can I get input from the Accelerometer?

I try to get the Input Motions datas, but all vectors return 0.

When I rotate my iPad4, values returned are null. Only "Gravity" is modified and return a little value, between 0.010 and 0.040, for one axe only. I don't think this is the expected values.

There is other discussions with this problem, encountered in C++ and Blueprint : https://answers.unrealengine.com/questions/25039/how-to-use-accelerometergravity-sensor-data.html

https://answers.unrealengine.com/questions/35512/how-to-use-tilt.html

https://forums.unrealengine.com/showthread.php?3176-Accelerometer-configuration

Here it is my test code. Tick function of the PlayerController :

 void AFirstPersonCodePlayerController::Tick(float DeltaTime)
 {
     Super::Tick(DeltaTime);
     
     bool test;
     FVector Tilt;
     FVector RotationRate;
     FVector Gravity;
     FVector Acceleration;
 
     test=PlayerInput->InputMotion(Tilt,RotationRate,Gravity,Acceleration);
 
     UE_LOG(LogTemp,Warning,TEXT("RotationRate X : %f / Y : %f / Z : %f"),RotationRate.X,RotationRate.Y,RotationRate.Z);
     UE_LOG(LogTemp,Warning,TEXT("Gravity X : %f / Y : %f / Z : %f"),Gravity.X,Gravity.Y,Gravity.Z);
     UE_LOG(LogTemp,Warning,TEXT("Acceleration X : %f / Y : %f / Z : %f"),Acceleration.X,Acceleration.Y,Acceleration.Z);
 }
 
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asked May 01 '14 at 01:16 AM in C++ Programming

avatar image

Eddy71
76 7 11 21

avatar image Tim C ♦♦ STAFF May 02 '14 at 09:22 PM

Hi Eddy71. Thank you for your feedback regarding using the accelerometer in your tablet. We are aware that the motion controls are not currently returning values, and plan on rectifying the situation soon.

Have a great day.

avatar image Eddy71 May 03 '14 at 10:21 AM

Hi Tim,

I'm glad to hear it.

Have a nice day

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Hi Eddy71,

Have you been able to successfully use the accelerometer for input? I will be marking this post as resolved for tracking purposes, but please feel free to reopen it if you still need assistance.

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answered Jul 01 '14 at 08:27 PM

avatar image Eddy71 Jul 07 '14 at 05:31 PM

Hi Tim,

"Get Input Motion State" now return values. Soon more tests for integration in my project. I will get back to you if I encounter problems.

Thanks.

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