CanvasHelper.cs

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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See LICENSE in the project root for license information.

using UnityEngine;
using HoloToolkit.Unity.InputModule;

namespace HoloToolkit.Unity
{
    [RequireComponent(typeof(Canvas))]
    public class CanvasHelper : MonoBehaviour
    {
        public Canvas Canvas;

        private void Awake()
        {
            if (Canvas == null)
            {
                Canvas = GetComponent<Canvas>();
            }
        }

        private void Start()
        {
            FocusManager.AssertIsInitialized();
            Debug.Assert(Canvas != null);

            if (Canvas.isRootCanvas && Canvas.renderMode == RenderMode.WorldSpace)
            {
                Canvas.worldCamera = FocusManager.Instance.UIRaycastCamera;
            }
        }
    }
}