Simple HMD Android Rotation Roll Bug

Development Platform & Builds XR Development
, , ,
1

I got a horrible bug in Simple HMD Android VR game.
U can do the steps as following to reproduce this bug :
1，Lay down the mobile phone flat and start game.
2, put the mobile phone up and rotate it along yaw severl times.
3, then Lay down mobile phone back to the origin position and rotation.

you would see the game View Roll change between 10-45 degrees than origin View.

2

Hello ,

I have a few questions for you that will help narrow down what issue it is that you are experiencing.

Quick questions:

  1. Can you reproduce this issue in a clean project?
  2. If so, could you provide a detailed set of steps to reproduce this issue on our end?
  3. What mobile device are you using?
  4. What is the OS that is currently running on the device?
3

1,Can you reproduce this issue in a clean project?
If so, could you provide a detailed set of steps to reproduce this issue on our end?

yes, it I tested in clean project(FirstPersonShootingGame templete),if u want to reproduce this issue u should check to active the SimpleHMD plugin, then u can do the following steps:

1，Lay down the mobile phone flat and start game. 
2, put the mobile phone up and rotate it along yaw severl times. 
3, then Lay down mobile phone back to the origin position and rotation.

you would see the game View Roll change between 10-45 degrees than origin View.

2,What mobile device are you using?
I am using SAMSUNG Galaxy S6 (SM-G9200)

What is the OS that is currently running on the device?

The OS it’s Android 5.1.1

PS:We also tested Google cardborad VR Lab. they have same issue, but they do substance ajustment evey tick try to rotate back to the correct rotation.

4

Does any development about this issue?

5

I was able to reproduce this issue on our end. Have you tried using the Rest Orientation and position node?

6

SimpleHMD’s Reset Orientation didn’t work anymore. (I saw it doesn’t write any code there)
Can u give me any suggestion about how to fix it?

7

Hello ,

I was able to reproduce this issue on our end. This may be a limitation, however I have written up a report (UE-25692) and I have submitted it to the developers for further consideration. I will provide updates with any pertinent information as it becomes available. I do not currently have a workaround for this issue. Thank you for your time and information.

Make it a great day

8

ok, I am lookingforward updating. thank u