Mixing manual main camera move and Tracked pose driver ?

Hello all,
I use a framework that moves the main camera on input event (keyboard, mouse).
I'm trying to add (6dof) VR capabilities to my application that use that framework.
- I would like to keep the framework input events to move my VR cameras when it moves the main camera.
- I need to move the main camera according to my VR cameras transform to keep the framework functionalities working.

I spend one week on this problem without succes

I made the following transform hierarchie :

• Main Camera (_cameraMain)
  • Game Object VRHead (_head)
    • VR Camera Left (_cameraLeft)
    • VR Camera Right (_cameraRight)

Then the following script (that does not work well) :

Code (CSharp):

1. void Update()
2. {
3.         // Get global position for each cameras
4.         Vector3 positionCameraLeft = getPositionCamLef(); // Mycode
5.         Vector3 positionCameraRight = getPositionCamRight(); // Mycode
6.  
7.         // Get global rotation for each cameras
8.         Quaternion rotationCameraLeft = getRotationCamLeft(); // Mycode
9.         Quaternion rotationCameraRight = getRotationCamRight(); // Mycode
10.  
11.  
12.         // Set head global position and rotation
13.         _head.transform.position = ((positionCameraLeft + positionCameraRight) / 2);
14.         _head.transform.rotation = Quaternion.Slerp(rotationCameraLeft, rotationCameraRight, 0.5f);
15.  
16.         // Set VR cameras global position and rotation
17.         _cameraLeft.transform.position = positionCameraLeft;
18.         _cameraLeft.transform.rotation = rotationCameraLeft;
19.         _cameraRight.transform.position = positionCameraRight;
20.         _cameraRight.transform.rotation = rotationCameraRight;
21.  
22.         // Move head with delta main camera position
23.         _head.transform.position -= _previousPositionMainCamera;
24.         _head.transform.position += _cameraMain.transform.position;
25.         _head.transform.rotation *= Quaternion.Inverse(_previousRotationMainCamera);
26.         _head.transform.rotation *= _cameraMain.transform.rotation;
27.  
28.         // Update main camera position at the head position
29.         _cameraMain.transform.position = _head.transform.position;
30.         _cameraMain.transform.rotation = _head.transform.rotation;
31.  
32.         // Replace the head position into the main camera position
33.         _head.transform.localPosition = Vector3.zero;
34.         _head.transform.localRotation = Quaternion.identity;
35.  
36.         // Save transforms for next image
37.         _previousPositionVRCamera = _head.transform.position;
38.         _previousRotationVRCamera = _head.transform.rotation;
39.         _previousPositionMainCamera = _cameraMain.transform.position;
40.         _previousRotationMainCamera = _cameraMain.transform.rotation;
41. }

With that script, I cannot move the maincamera with my framework.
And if I force a main camera rotation, When I move the head, the direction is bad (does not take the main camera rotation into account).

I start thinking I miss something

Any help could be appreciated.

 

I am new to vr devlop but i do like to keep it simlple.

Have you try to use te tracked pose Driver componnent in main camera


?

 

Hum. Seems interesting.
Could you explain me how to use it ?

 

you have to go in package manager

in the unity Registry scrool all down and install the 2 last xr plug in





"XR legacy" ( stand for the component you need to add

and

"XR Plugin" (is for setting up the VR devices,

 

Ok.
I made a very simple test :
I created a "TestTtrackedPoseDriver" GameObject and load the following script :

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.Experimental.XR.Interaction;
5.  
6.  
7. public class TestTransform : BasePoseProvider
8. {
9.     [Range(-180.0f, 180.0f)]
10.     public float VrRotX = 0;
11.  
12.     [Range(-180.0f, 180.0f)]
13.     public float VrRotY = 0;
14.  
15.     [Range(-180.0f, 180.0f)]
16.     public float VrRotZ = 0;
17.  
18.     [Range(-10.0f, 10.0f)]
19.     public float VrPosX = 0;
20.  
21.     [Range(-10.0f, 10.0f)]
22.     public float VrPosY = 1.7f;
23.  
24.     [Range(-10.0f, 10.0f)]
25.     public float VrPosZ = 0;
26.  
27.     public override bool TryGetPoseFromProvider(out Pose output)
28.     {
29.         output.position = new Vector3(VrPosX, VrPosY, VrPosZ);
30.         output.rotation = Quaternion.Euler(VrRotX, VrRotY, VrRotZ);
31.  
32.         return true;
33.     }
34. }

Then I added a tracked pose driver on my main camera and I use my Pose provider :

Now I can move my main camera using my Range parameters in my TestTrackedPoseDriver object but I cannot move the maincamera directly

 

forgot to mension a step

1st remove the script and componnent you add

2 Right click in main camera

3 down to " XR "

4 click "Convert main camera to XR RIG

it will add XR Rig GameObject in hierarchy along with a camera offset script, the componnent Tracked Pose Rdiver right in the main camera

Note: Tracked pose Driver support the camera and controller in the first parameter "Device"

 

Thanks but that do not work in my case

 

ref: https://forum.unity.com/threads/trackedposedriver-in-2019-1.634963/#post-5004626