Calibration

The hand tracker can sometimes project the hand landmarks into the wrong depth range. A calibration process is required to fix this error. It's a short process where we ask the user to place their hand on a flat surface, direct the camera on it and bring it closer and further for a few seconds while a plane ray-casting is performed to determine the distance from the camera to the plane on which the user has laid the hand. In the demo scene from the sample provided with the Ur package, you can find a Calibrate Hand Tracker Button and code that can easily be used in any project.

You will also need to add the ARPlaneManager component on the ARSessionOrigion GameObject.

Occlusion Culling

Add the AROcclusionManager component to AR Camera GameObject and adjust its properties (Fastest on all).

To use the AROcclusionManager in the code, import ARSubsystems.

using UnityEngine.XR.ARSubsystems;

Declare an AROcclusionManager serializable variable and a boolean for toggling it on and off.

[SerializeField] private AROcclusionManager arOcclusionManager;
private bool occlusionBool = true;

In Unity, drag the ARCamera GameObject to the AROcclusionManager field in the ConureKitManager.

Then create a toggle method to toggle between the different AROcclusionManager modes.

public void ToggleOcclusion()
{
    occlusionBool = !occlusionBool;

    arOcclusionManager.requestedHumanDepthMode = occlusionBool ? HumanSegmentationDepthMode.Fastest : HumanSegmentationDepthMode.Disabled;
    arOcclusionManager.requestedHumanStencilMode = occlusionBool ? HumanSegmentationStencilMode.Fastest : HumanSegmentationStencilMode.Disabled;
    arOcclusionManager.requestedEnvironmentDepthMode = occlusionBool ? EnvironmentDepthMode.Fastest : EnvironmentDepthMode.Disabled;
}

Use a UI toggle to switch between modes, but again you can use any method you choose.