VR camera initial position

[Jose Vicente]

Hello.

I've a scene in which I use ArcRotateCamera and also  VR is enabled using VRExperienceHelper.

The problem is that, when the user enters to VR,  VR camera is not looking at the same position that is looking Non-VR Camera and also is further. I've tried to handle onEnteringVR event,but I'm not able to make it work.

I've prepared to simple examples to illustrate the problem.

In this sample, without moving/rotation the camera, if the user enters in VR, is looking to the sphere, which is OK, but it is further from the sphere, which is not OK.

However, in this sample, if the user enters in VR without moving the camera, is looking to the sphere opposite side, and also the position is wrong.

Any ideas to help to put the correct position/orientation in the VR camera when entering to VR?

Thanks in advance.

Regards.

 

[Dieterich]

Verify this:

vrHelper.vrDeviceOrientationCamera.cameraDirection = new BABYLON.Vector3(0,1,-5);

[bghgary]

ping @trevordev

[trevordev]

Yea, it looks like the code only updates position at the moment. Fixed with this PR: https://github.com/BabylonJS/Babylon.js/pull/5426 . Let me know if you still observe issues.

[ffrechina]

is the change ready in the playground? I ask because the same problem described above still happening in the babylon playground

[Guest]

Should be live in 10 minutes

[ffrechina]

Now I see the correct orientation but I still see the sphere further when entering in VR

[ffrechina]

You can see in this sample that the problem is not fixed.

Move the ball, go VR, move again the ball, and enter again to VR. You will see how the camera is going crazy.

 

And also, the camera is further.

 

Here a video 

 

[ffrechina]

any help with this please? Thank you!

[trevordev]

Sorry about that. Created this additional PR https://github.com/BabylonJS/Babylon.js/pull/5438 It appears the angular drag events were not disabled when in VR. That jolted rotation when entering/exiting should be fixed now. As for the camera being further away, it looks like the position of the camera is the same, I think it looks further due to the viewport/distortion change, hopefully this is ok for your scenario.

[ffrechina]

Thank you @trevordev! It looks like now it works.

With respect to "it looks further", it is important in my scenario. Do you know any way to get the aparently same distance from the object in 3D and VR?

Thank your again

[trevordev]

@ffrechina What vr device are you using or are you running only in a browser? Do you feel you are further away when you enter VR with a headset on? To me only when using the fallback camera do I see what you are seeing which uses specific camera distortion for gear vr, I could add a property to the helper to disable that camera so in chrome if you enter vr without an hmd it will just go fullscreen.

[ffrechina]

Hi @trevordev. That's true. If I use the vr device, it works as expected.

Thank you so much!