Question ARFoundation TryAcquireLatestCpuImage is not synchronized with ARCamera Pose?

I have a question about ARFoundation TryAcquireLatestCpuImage, is it not synchronized with ARCamera Pose?

 

Hi,

If you use TryAcquireLatestCpuImage in Application.onBeforeRender, you'll get synchronized frame with the camera pose I think.

 

Thanks! I test your idea, but it doesn't work. The code like this:

    void Awake()

    {

        Application.onBeforeRender += UpdateCameraImage;

    }

In UpdateCameraImage , I call TryAcquireLatestCpuImage , and get camera pose in this function or in Update, it still can't work. Did I do something wrong?

 

How did you test that ARFrame pose is not synchronized with camera pose ?

 

We have a VPS Algo&Application, we use a frame data to localization, and fuse this frame pose with tracker pose and locating pose, we call the result fusion pose. Then we render a arcontent camera by the fusion pose, we find the rendered model is not fixed with the real scene. The arcontent camera and the ARCamera(render the background by ARFoundation) have the same projection matrix, so we think that the frame data acquired by TryAcquireLatestCpuImage is not synchronized with camera pose.

 

We use it for our 3D tracker algorithm and it works well. Did you try to enable "match frame rate" option from AR session?

 

Yes, it is turned on by default.
I think that You should call TryAcquireLatestCpuImage to get the frame data and get the frame pose synchronously in your 3D tracker. How did you configure your ARContentCamera, such as the Projection Matrix？