Pausing and Restarting Mars Session

Unity Engine
,
1

After reading a couple other threads about this I attempted to implement a few of the solutions with no favorable resolution. Currently we are trying to “Toggle Off” the Physical Camera on an iPhone when we are on a UI screen.

The 2 Posts I’ve Read on this topic: Turn Off Mars Camera and Reset MARS
We originally thought turning off the ARSessionOrigin components, or even the ARCamera would fix the problem however neither work.

I am pretty sure I’m close, but the issue I’m reaching currently is that I am using the following code from one of the forum posts:

using System;
using Unity.MARS.Providers;
using Unity.MARS.Settings;
using Unity.XRTools.ModuleLoader;
using UnityEngine;

namespace Unity.MARS
{
    public class SessionUI : MonoBehaviour, IUsesFunctionalityInjection, IUsesSessionControl
    {
        IProvidesFunctionalityInjection IFunctionalitySubscriber<IProvidesFunctionalityInjection>.provider { get; set; }
        IProvidesSessionControl IFunctionalitySubscriber<IProvidesSessionControl>.provider { get; set; }

        void Awake()
        {
            // Only necessary if this script isn't already in the scene when you press Play
            this.EnsureFunctionalityInjected();
        }

        public void TogglePaused()
        {
            var marsCore = MARSCore.instance;
            var wasPaused = marsCore.paused;
            marsCore.paused = !wasPaused;
            if (wasPaused)
            {
                this.ResumeSession();
            }
            else
            {
                this.PauseSession();
            }
        }
    }
}

But I need to be able to Call this inside my GameManager.cs file when needed.

This is how I’m declaring it in the GameManager.cs file:

(This script is also “using Unity.MARS;”)

    public SessionUI session;

I’m implementing it like this:

session.TogglePaused();

However, the issue I’m getting is that since this script “SessionUI” has that void Awake() function to not worry about linking it as the article stated. When I play my scene however and the editor hits line 194 (the first time session.TogglePaused(); is used and hits this error:

NullReferenceException: Object reference not set to an instance of an object
GameManager.Start () (at Assets/Scripts/GameManager.cs:194)

Any ideas to fix this?

2

Without seeing your GameManager.cs file it’s hard to say what’s going on here. Is it trying to access session which has not been initialized?

If you file a bug report from your project from the Help menu that will let us have a look at what is going on.