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com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts.meta

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com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/Helper.meta

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com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/Helper/AndroidProcessHelper.cs

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+// Copyright HTC Corporation All Rights Reserved.
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+using UnityEngine.Android;
+
+namespace VIVE.OpenXR.Toolkits.Spectator.Helper
+{
+    public static class AndroidProcessHelper
+    {
+        private static AndroidJavaObject _activity;
+
+        public static AndroidJavaObject Activity
+        {
+            get
+            {
+                if (_activity != null)
+                {
+                    return _activity;
+                }
+
+                var unityPlayer = new AndroidJavaClass(ANDROID_CLASS_UNITY_PLAYER);
+                _activity = unityPlayer.GetStatic<AndroidJavaObject>("currentActivity");
+
+                return _activity;
+            }
+        }
+
+        // Reference: https://stackoverflow.com/q/58728596/10467387
+        public static IEnumerator RequestPermission(Dictionary<string, PermissionCallbacks> permissions)
+        {
+            var permissionGranted = Enumerable.Repeat(false, permissions.Count).ToList();
+            var permissionAsked = Enumerable.Repeat(false, permissions.Count).ToList();
+            var permissionAction = new List<Action>();
+
+            for (var i = 0; i < permissions.Count; i++)
+            {
+                int currentCount = i;
+                (string permission, PermissionCallbacks permissionCallbacks) = permissions.ElementAt(currentCount);
+                permissionAction.Add(() =>
+                {
+                    permissionGranted[currentCount] = Permission.HasUserAuthorizedPermission(permission);
+                    if (permissionGranted[currentCount] || permissionAsked[currentCount])
+                    {
+                        return;
+                    }
+
+                    Permission.RequestUserPermission(permission, permissionCallbacks);
+                    permissionAsked[currentCount] = true;
+                });
+            }
+
+            for (var i = 0; i < permissions.Count;)
+            {
+                permissionAction[i].Invoke();
+                if (permissionAsked[i])
+                {
+                    i++;
+                }
+
+                yield return new WaitForEndOfFrame();
+            }
+        }
+
+        public const string ANDROID_CLASS_UNITY_PLAYER = "com.unity3d.player.UnityPlayer";
+        public const string ANDROID_CLASS_MEDIA_STORE_IMAGE_MEDIA = "android.provider.MediaStore$Images$Media";
+        public const string ANDROID_CLASS_GRAPHICS_BITMAP_FACTORY = "android.graphics.BitmapFactory";
+        public const string ANDROID_CLASS_GRAPHICS_BITMAP_COMPRESS_FORMAT = "android.graphics.Bitmap$CompressFormat";
+        public const string ANDROID_CLASS_OS_ENVIRONMENT = "android.os.Environment";
+        public const string ANDROID_CLASS_OS_BUILD_VERSION = "android.os.Build$VERSION";
+        public const string ANDROID_CLASS_CONTENT_INTENT = "android.content.Intent";
+        public const string ANDROID_CLASS_CONTENT_VALUES = "android.content.ContentValues";
+        public const string ANDROID_CLASS_NET_URI = "android.net.Uri";
+        public const string JAVA_CLASS_IO_FILE = "java.io.File";
+        public const string JAVA_CLASS_IO_OUTPUTSTREAM = "java.io.OutputStream";
+        public const string JAVA_CLASS_IO_BYTEARRAYOUTPUTSTREAM = "java.io.ByteArrayOutputStream";
+        public const string JAVA_CLASS_IO_BYTEARRAYINPUTSTREAM = "java.io.ByteArrayInputStream";
+    }
+}

com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/Helper/AndroidProcessHelper.cs.meta

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com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/Helper/EditorHelper.cs

@@ -0,0 +1,63 @@
+// Copyright HTC Corporation All Rights Reserved.
+
+#if UNITY_EDITOR
+
+using System.Text.RegularExpressions;
+using UnityEditor;
+using UnityEngine;
+
+namespace VIVE.OpenXR.Toolkits.Spectator.Helper
+{
+    public static class EditorHelper
+    {
+        // Microsoft definition
+        // https://learn.microsoft.com/en-us/dotnet/api/microsoft.entityframeworkcore.metadata.conventions.backingfieldconvention?view=efcore-7.0#definition
+        private const string BackingFieldConventionPrefix = "<";
+        private const string BackingFieldConventionEndString = "k__BackingField";
+
+        public static void ShowDefaultInspector(SerializedObject obj)
+        {
+            EditorGUI.BeginChangeCheck();
+            obj.UpdateIfRequiredOrScript();
+
+            SerializedProperty iterator = obj.GetIterator();
+            for (bool enterChildren = true; iterator.NextVisible(enterChildren); enterChildren = false)
+            {
+                using (new EditorGUI.DisabledScope("m_Script" == iterator.propertyPath))
+                {
+                    string originalLabelText = iterator.name;
+                    if (originalLabelText.EndsWith(BackingFieldConventionEndString))
+                    {
+                        string fixLabelText = Regex.Replace(
+                            originalLabelText.Substring(
+                                1,
+                                originalLabelText.Length - 1 - BackingFieldConventionPrefix.Length -
+                                BackingFieldConventionEndString.Length),
+                            "([a-z])([A-Z])",
+                            "$1 $2");
+
+                        EditorGUILayout.PropertyField(
+                            property: iterator,
+                            label: new GUIContent(fixLabelText),
+                            includeChildren: true);
+                    }
+                    else
+                    {
+                        EditorGUILayout.PropertyField(iterator, true);
+                    }
+                }
+            }
+
+            obj.ApplyModifiedProperties();
+            EditorGUI.EndChangeCheck();
+        }
+
+        public static string PropertyName(string propertyName)
+        {
+            // Microsoft definition
+            // https://learn.microsoft.com/en-us/dotnet/api/microsoft.entityframeworkcore.metadata.conventions.backingfieldconvention?view=efcore-7.0#definition
+            return $"<{propertyName}>k__BackingField";
+        }
+    }
+}
+#endif

com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/Helper/EditorHelper.cs.meta

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com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/Helper/IOProcessHelper.cs

@@ -0,0 +1,163 @@
+// Copyright HTC Corporation All Rights Reserved.
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Threading.Tasks;
+using UnityEngine;
+using Debug = UnityEngine.Debug;
+
+namespace VIVE.OpenXR.Toolkits.Spectator.Helper
+{
+    public static class IOProcessHelper
+    {
+#if UNITY_ANDROID
+        /// <summary>
+        /// Get the path of pictures folder in external storage in Android.
+        /// </summary>
+        /// <returns>Return Pictures folder directory if get successfully, otherwise return empty string</returns>
+        public static string GetAndroidExternalStoragePicturesDirectory()
+        {
+            Debug.Log("GetAndroidExternalStoragePicturesDirectory called");
+
+            string path = string.Empty;
+
+            try
+            {
+                // Init the class in java code
+                using (AndroidJavaClass environment =
+                       new AndroidJavaClass(AndroidProcessHelper.ANDROID_CLASS_OS_ENVIRONMENT))
+                {
+                    // Call static method to get the path of pictures folder in external storage
+                    path = environment.CallStatic<AndroidJavaObject>("getExternalStoragePublicDirectory",
+                            environment.GetStatic<string>("DIRECTORY_PICTURES"))
+                        .Call<string>("getAbsolutePath");
+                }
+            }
+            catch (Exception e)
+            {
+                Debug.LogError($"Error on getting the path of pictures folder in external storage in Android: {e}");
+            }
+
+            Debug.Log($"Get path in GetAndroidExternalStoragePicturesDirectory: {path}");
+
+            return path;
+        }
+
+        public static string GetAndroidPrimaryExternalStorageDirectory()
+        {
+            Debug.Log("GetAndroidPrimaryExternalStorageDirectory called");
+
+            string path = string.Empty;
+
+            try
+            {
+                using (AndroidJavaClass environment =
+                       new AndroidJavaClass(AndroidProcessHelper.ANDROID_CLASS_OS_ENVIRONMENT))
+                {
+                    path = environment.CallStatic<AndroidJavaObject>("getExternalStorageDirectory")
+                        .Call<string>("getAbsolutePath");
+                }
+            }
+            catch (Exception e)
+            {
+                Debug.LogError($"Error on getting the path of pictures folder in external storage in Android: {e}");
+            }
+
+            Debug.Log($"Get path in GetAndroidPrimaryExternalStorageDirectory: {path}");
+
+            return path;
+        }
+
+        public static Dictionary<ExternalStorageType, string> GetAndroidAllExternalStorageDirectory()
+        {
+            Debug.Log("GetAndroidAllExternalStorageDirectory called");
+
+            // Get all available external file directories (emulated or removable (aka sd card))
+            AndroidJavaObject[] externalFilesDirectories =
+                AndroidProcessHelper.Activity.Call<AndroidJavaObject[]>("getExternalFilesDirs", (object)null);
+
+            var result = new Dictionary<ExternalStorageType, string>();
+            using (var environment = new AndroidJavaClass(AndroidProcessHelper.ANDROID_CLASS_OS_ENVIRONMENT))
+            {
+                foreach (var item in externalFilesDirectories)
+                {
+                    string directory = item.Call<string>("getAbsolutePath");
+                    Debug.Log($"Find the path in GetAndroidExternalStorageDirectory: {directory}");
+
+                    if (environment.CallStatic<bool>("isExternalStorageRemovable", item))
+                    {
+                        result.Add(ExternalStorageType.Removable, directory);
+                    }
+                    else if (environment.CallStatic<bool>("isExternalStorageEmulated", item))
+                    {
+                        result.Add(ExternalStorageType.Emulated, directory);
+                    }
+                }
+            }
+
+            return result;
+        }
+
+        public enum ExternalStorageType
+        {
+            Removable,
+            Emulated
+        }
+#endif
+
+        public static Task SaveByteDataToDisk(byte[] bytes, string saveDirectory, string fileNameWithFileExtension)
+        {
+            Directory.CreateDirectory(saveDirectory);
+
+            try
+            {
+                string fullPath = Path.Combine(saveDirectory, fileNameWithFileExtension);
+                System.IO.File.WriteAllBytes(fullPath, bytes);
+            }
+            catch (Exception e)
+            {
+                Debug.LogError($"Error on writing byte data to disk: {e}");
+            }
+
+            return Task.CompletedTask;
+        }
+
+        public static byte[] OpenFile(string path)
+        {
+            if (!File.Exists(path))
+            {
+                Debug.LogError("File not exist: " + path);
+                return null;
+            }
+
+            byte[] data = File.ReadAllBytes(path);
+            if (data.Length == 0)
+            {
+                Debug.LogError("File is empty: " + path);
+                return null;
+            }
+
+            return data;
+        }
+
+        public static byte[] OpenJpeg(string path)
+        {
+            byte[] data = OpenFile(path);
+
+            if (data == null)
+            {
+                Debug.LogError("Open Jpeg error");
+                return null;
+            }
+
+            if (data[0] != 0xFF || data[1] != 0xD8)
+            {
+                Debug.LogError("File is not JPEG: " + path);
+                return null;
+            }
+
+            return data;
+        }
+    }
+}

com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/Helper/IOProcessHelper.cs.meta

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com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/Helper/LayerMaskHelper.cs

@@ -0,0 +1,102 @@
+// Copyright HTC Corporation All Rights Reserved.
+
+using UnityEngine;
+#if UNITY_EDITOR
+using UnityEditor;
+using UnityEditorInternal;
+#endif
+
+namespace VIVE.OpenXR.Toolkits.Spectator.Helper
+{
+    public static class LayerMaskHelper
+    {
+        public static bool HasLayer(this LayerMask layerMask, int layer)
+        {
+            if (layerMask == (layerMask | (1 << layer)))
+            {
+                return true;
+            }
+
+            return false;
+        }
+
+        public static bool[] HasLayers(this LayerMask layerMask)
+        {
+            var hasLayers = new bool[32];
+
+            for (int i = 0; i < 32; i++)
+            {
+                if (layerMask == (layerMask | (1 << i)))
+                {
+                    Debug.Log($"LayerMask.LayerToName = {LayerMask.LayerToName(i)}");
+                    hasLayers[i] = true;
+                }
+            }
+
+            return hasLayers;
+        }
+
+#if UNITY_EDITOR
+        public static class LayerMaskDrawer
+        {
+            public static int LayerMaskField(string label, int layermask)
+            {
+                return FieldToLayerMask(EditorGUILayout.MaskField(label, LayerMaskToField(layermask),
+                    InternalEditorUtility.layers));
+            }
+
+            public static int LayerMaskField(Rect position, string label, int layermask)
+            {
+                return FieldToLayerMask(EditorGUI.MaskField(position, label, LayerMaskToField(layermask),
+                    InternalEditorUtility.layers));
+            }
+
+            /// <summary>
+            /// Converts field LayerMask values to in game LayerMask values
+            /// </summary>
+            /// <param name="field"></param>
+            /// <returns></returns>
+            private static int FieldToLayerMask(int field)
+            {
+                if (field == -1) return -1;
+                int mask = 0;
+                var layers = InternalEditorUtility.layers;
+                for (int c = 0; c < layers.Length; c++)
+                {
+                    if ((field & (1 << c)) != 0)
+                    {
+                        mask |= 1 << LayerMask.NameToLayer(layers[c]);
+                    }
+                    else
+                    {
+                        mask &= ~(1 << LayerMask.NameToLayer(layers[c]));
+                    }
+                }
+
+                return mask;
+            }
+
+            /// <summary>
+            /// Converts in game LayerMask values to field LayerMask values
+            /// </summary>
+            /// <param name="mask"></param>
+            /// <returns></returns>
+            private static int LayerMaskToField(int mask)
+            {
+                if (mask == -1) return -1;
+                int field = 0;
+                var layers = InternalEditorUtility.layers;
+                for (int c = 0; c < layers.Length; c++)
+                {
+                    if ((mask & (1 << LayerMask.NameToLayer(layers[c]))) != 0)
+                    {
+                        field |= 1 << c;
+                    }
+                }
+
+                return field;
+            }
+        }
+#endif
+    }
+}

com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/Helper/LayerMaskHelper.cs.meta

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com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/Helper/SpectatorCameraHelper.cs

@@ -0,0 +1,516 @@
+// Copyright HTC Corporation All Rights Reserved.
+
+using System.IO;
+using UnityEngine;
+
+namespace VIVE.OpenXR.Toolkits.Spectator.Helper
+{
+    public class SpectatorCameraHelper
+    {
+        # region Attribute value range
+
+        public const float VERTICAL_FOV_MIN = 10f;
+        public const float VERTICAL_FOV_MAX = 130f;
+
+        public const float FRUSTUM_LINE_WIDTH_MIN = .02f;
+        public const float FRUSTUM_LINE_WIDTH_MAX = .05f;
+
+        public const float FRUSTUM_CENTER_LINE_WIDTH_MIN = .01f;
+        public const float FRUSTUM_CENTER_LINE_WIDTH_MAX = .04f;
+
+        public const int PANORAMA_RESOLUTION_MIN = 512;
+        public const int PANORAMA_RESOLUTION_MAX = 4096;
+
+        public const int SMOOTH_CAMERA_MOVEMENT_MIN = 8;
+        public const int SMOOTH_CAMERA_MOVEMENT_MAX = 16;
+
+        public const float COMPARE_FLOAT_SUPER_SMALL_THRESHOLD = .001f;
+        public const float COMPARE_FLOAT_EXTRA_SMALL_THRESHOLD = .01f;
+        public const float COMPARE_FLOAT_SMALL_THRESHOLD = .1f;
+        public const float COMPARE_FLOAT_MEDIUM_THRESHOLD = 1f;
+        public const float COMPARE_FLOAT_LARGE_THRESHOLD = 10f;
+
+        public const float INTERVAL_SECOND_GET_SPECTATOR_HANDLER = .5f;
+        public const float MAX_SECOND_GET_SPECTATOR_HANDLER = 5f;
+
+        public const float INTERVAL_SECOND_INTERNAL_SPECTATOR_CAMERA = 1f;
+        public const float MAX_SECOND_GET_INTERNAL_SPECTATOR_CAMERA = 2f;
+
+        # endregion
+
+        public static readonly Vector3 SpectatorCameraSpherePrefabScaleDefault = new Vector3(.08f, .08f, .08f);
+
+        #region Attribute default value definition
+
+        public const int TEXTURE_WIDTH = 1920;
+        public const int TEXTURE_HEIGHT = 1080;
+
+        public const CameraSourceRef CAMERA_SOURCE_REF_DEFAULT = CameraSourceRef.Hmd;
+        public static readonly Vector3 PositionDefault = new Vector3(0f, 1.7f, 0f);
+        public static readonly Quaternion RotationDefault = Quaternion.identity;
+        public static readonly LayerMask LayerMaskDefault = -1;
+
+        public const bool IS_SMOOTH_CAMERA_MOVEMENT_DEFAULT = true;
+        public const int SMOOTH_CAMERA_MOVEMENT_SPEED_DEFAULT = 10;
+
+        public const bool IS_FRUSTUM_SHOWED_DEFAULT = false;
+
+        public const float VERTICAL_FOV_DEFAULT = 60f;
+
+        public const SpectatorCameraPanoramaResolution PANORAMA_RESOLUTION_DEFAULT =
+            SpectatorCameraPanoramaResolution._2048;
+
+        public const TextureProcessHelper.PictureOutputFormat PANORAMA_OUTPUT_FORMAT_DEFAULT =
+            TextureProcessHelper.PictureOutputFormat.PNG;
+
+        public const TextureProcessHelper.PanoramaType PANORAMA_TYPE_DEFAULT =
+            TextureProcessHelper.PanoramaType.Monoscopic;
+
+        public const float STEREO_SEPARATION_DEFAULT = 0.065f;
+
+        public const FrustumLineCount FRUSTUM_LINE_COUNT_DEFAULT =
+            FrustumLineCount.Four;
+
+        public const FrustumCenterLineCount FRUSTUM_CENTER_LINE_COUNT_DEFAULT =
+            FrustumCenterLineCount.Center;
+
+        public const float FRUSTUM_LINE_WIDTH_DEFAULT = .02f;
+        public const float FRUSTUM_CENTER_LINE_WIDTH_DEFAULT = .01f;
+
+        public const float FRUSTUM_LINE_BEGIN_DEFAULT = .3f;
+
+        // Define by Unity: https://docs.unity3d.com/ScriptReference/Camera.CalculateFrustumCorners.html
+        public const int FRUSTUM_OUT_CORNERS_COUNT = 4;
+
+        public static readonly Color LineColorDefault = Color.white;
+        public const string LINE_SHADER_NAME_DEFAULT = "UI/Default";
+
+#if UNITY_EDITOR
+        public const bool IS_DEBUG_SPECTATOR_CAMERA = true;
+#endif
+
+        #endregion
+
+        #region Frustum game object name definition
+
+        public const string FRUSTUM_LINE_ROOT_NAME_DEFAULT = "FrustumLines";
+        public const string FRUSTUM_LINE_NAME_PREFIX_DEFAULT = "Frustum";
+        public const string FRUSTUM_CENTER_LINE_ROOT_NAME_DEFAULT = "FrustumCenterLines";
+        public const string FRUSTUM_CENTER_LINE_NAME_PREFIX_DEFAULT = "FrustumCenter";
+
+        #endregion
+
+        #region Save file definition
+
+        public const string SAVE_PHOTO360_ALBUM_NAME = "Screenshots";
+
+        public const string ATTRIBUTE_FILE_PREFIX_NAME = "SpectatorCameraAttribute";
+
+        public const string ATTRIBUTE_FILE_EXTENSION = "json";
+
+        #endregion
+
+        /// <summary>
+        /// Load the attribute file from resource folder
+        /// </summary>
+        /// <param name="sceneName">The corresponding scene name of the attribute file</param>
+        /// <param name="gameObjectName">The corresponding gameObject name of the attribute file</param>
+        /// <param name="data">The attribute data which save in attribute file</param>
+        /// <returns>True if get the attribute data successfully. Otherwise, return false.</returns>
+        public static bool LoadAttributeFileFromResourcesFolder(
+            in string sceneName,
+            in string gameObjectName,
+            out SpectatorCameraAttribute data)
+        {
+            Debug.Log("Get spectator camera attribute at resources folder");
+
+            data = new SpectatorCameraAttribute();
+            TextAsset json;
+
+            // Name format: {PREFIX}_{SCENE NAME}_{GAME OBJECT NAME}.json
+            var fileName = GetSpectatorCameraAttributeFileNamePattern(sceneName, gameObjectName, false);
+
+            try
+            {
+                json = Resources.Load<TextAsset>(fileName);
+            }
+            catch (System.Exception e)
+            {
+                Debug.LogWarning("Get attribute data from resources folder fail:");
+                Debug.LogWarning($"{e}");
+                return false;
+            }
+
+            if (json == null)
+            {
+                Debug.LogWarning("The attribute data at resources folder is empty or null");
+                return false;
+            }
+
+            Debug.Log($"The attribute value is: {json.text}");
+            data = JsonUtility.FromJson<SpectatorCameraAttribute>(json.text);
+
+            if (data == null)
+            {
+                Debug.LogWarning("Convert attribute data from resources folder fail");
+                return false;
+            }
+
+            Debug.Log("Get attribute data from resources folder successful");
+            return true;
+        }
+
+        /// <summary>
+        /// Load the attribute file from full path
+        /// </summary>
+        /// <param name="fullPathWithFileNameAndExtension">Full path</param>
+        /// <param name="data">The attribute data which save in persistent folder</param>
+        /// <returns>True if get the attribute data successfully. Otherwise, return false.</returns>
+        public static bool LoadAttributeFileFromFolder(
+            string fullPathWithFileNameAndExtension,
+            out SpectatorCameraAttribute data)
+        {
+            Debug.Log($"Get spectator camera attribute at {fullPathWithFileNameAndExtension}");
+
+            return LoadAttributeData(fullPathWithFileNameAndExtension, out data);
+        }
+
+        /// <summary>
+        /// Load the attribute file from persistent folder
+        /// </summary>
+        /// <param name="sceneName">The corresponding scene name of the attribute file</param>
+        /// <param name="gameObjectName">The corresponding gameObject name of the attribute file</param>
+        /// <param name="data">The attribute data which save in persistent folder</param>
+        /// <returns>True if get the attribute data successfully. Otherwise, return false.</returns>
+        public static bool LoadAttributeFileFromPersistentFolder(
+            in string sceneName,
+            in string gameObjectName,
+            out SpectatorCameraAttribute data)
+        {
+            // Name format: {PREFIX}_{SCENE NAME}_{GAME OBJECT NAME}.json
+            var fileNameWithExtension = GetSpectatorCameraAttributeFileNamePattern(sceneName, gameObjectName);
+
+            var attributeFileDirectoryAndFileNameWithExtension =
+                Path.Combine(Application.persistentDataPath, fileNameWithExtension);
+
+            Debug.Log($"Get spectator camera attribute at {attributeFileDirectoryAndFileNameWithExtension}");
+
+            return LoadAttributeData(attributeFileDirectoryAndFileNameWithExtension, out data);
+        }
+
+#if UNITY_EDITOR
+        /// <summary>
+        /// Save the spectator camera attribute as a JSON file to the resources folder located in the Unity project's assets folder.
+        /// </summary>
+        public static void SaveAttributeData2ResourcesFolder(
+            in string sceneName,
+            in string gameObjectName,
+            in SpectatorCameraAttribute data)
+        {
+            // Name format: {PREFIX}_{SCENE NAME}_{GAME OBJECT NAME}.json
+            var fileNameWithExtension = GetSpectatorCameraAttributeFileNamePattern(sceneName, gameObjectName);
+            string resourcesFolderPath = Path.Combine(Application.dataPath, "Resources");
+            SaveAttributeData(resourcesFolderPath, fileNameWithExtension, data);
+        }
+#endif
+
+        /// <summary>
+        /// Save the spectator camera attribute as a JSON file to a persistent folder.
+        /// </summary>
+        public static void SaveAttributeData2PersistentFolder(
+            in string sceneName,
+            in string gameObjectName,
+            in SpectatorCameraAttribute data)
+        {
+            // Name format: {PREFIX}_{SCENE NAME}_{GAME OBJECT NAME}.json
+            var fileNameWithExtension = GetSpectatorCameraAttributeFileNamePattern(sceneName, gameObjectName);
+
+            SaveAttributeData(Application.persistentDataPath, fileNameWithExtension, data);
+        }
+
+        /// <summary>
+        /// Load the spectator camera attribute as a JSON file on disk.
+        /// </summary>
+        /// <param name="fullPathWithFileNameAndExtension">The path (string) that include directory, file name and extension</param>
+        /// <param name="data">The data of spectator camera attribute</param>
+        /// <returns>True if get the attribute data successfully. Otherwise, return false.</returns>
+        private static bool LoadAttributeData(
+            string fullPathWithFileNameAndExtension,
+            out SpectatorCameraAttribute data)
+        {
+            data = new SpectatorCameraAttribute();
+            string json;
+            try
+            {
+                json = File.ReadAllText(fullPathWithFileNameAndExtension);
+            }
+            catch (System.Exception e)
+            {
+                Debug.LogWarning($"Get attribute data from {fullPathWithFileNameAndExtension} failed: {e}");
+                return false;
+            }
+
+            if (string.IsNullOrEmpty(json))
+            {
+                Debug.LogWarning($"The attribute data at {fullPathWithFileNameAndExtension} is empty or null");
+                return false;
+            }
+
+            Debug.Log($"The attribute value is: {json}");
+            data = JsonUtility.FromJson<SpectatorCameraAttribute>(json);
+
+            if (data == null)
+            {
+                Debug.LogWarning($"Convert attribute data from {fullPathWithFileNameAndExtension} failed");
+                return false;
+            }
+
+            Debug.Log($"Get attribute data from {fullPathWithFileNameAndExtension} successful");
+            return true;
+        }
+
+        /// <summary>
+        /// Save the spectator camera attribute as a JSON file on disk.
+        /// </summary>
+        /// <param name="saveFileDirectory">The directory that the spectator camera attribute (JSON file) will save to</param>
+        /// <param name="saveFileNameWithExtension">The file name of the spectator camera attribute (JSON file)</param>
+        /// <param name="data">The data of spectator camera attribute</param>
+        private static void SaveAttributeData(
+            in string saveFileDirectory,
+            in string saveFileNameWithExtension,
+            in SpectatorCameraAttribute data)
+        {
+            if (string.IsNullOrEmpty(saveFileDirectory) || string.IsNullOrEmpty(saveFileNameWithExtension))
+            {
+                Debug.LogError("The saving file directory or name is null or empty");
+                return;
+            }
+
+            string fullPath = Path.Combine(saveFileDirectory, saveFileNameWithExtension);
+
+            // Convert to string format
+            string json = JsonUtility.ToJson(data);
+
+            // Make sure the file path is exist
+            if (!Directory.Exists(saveFileDirectory))
+            {
+                Directory.CreateDirectory(saveFileDirectory);
+            }
+
+            File.WriteAllText(fullPath, json);
+
+            Debug.Log($"The configuration save at {fullPath}");
+        }
+
+        public static string GetSpectatorCameraAttributeFileNamePattern(
+            in string sceneName,
+            in string gameObjectName,
+            bool withExtension = true)
+        {
+            var fileNamePattern = $"{ATTRIBUTE_FILE_PREFIX_NAME}_{sceneName}_{gameObjectName}";
+            if (withExtension)
+            {
+                fileNamePattern += $".{ATTRIBUTE_FILE_EXTENSION}";
+            }
+
+            return fileNamePattern;
+        }
+
+        /// <summary>
+        /// Check the panorama resolution is power of two or not. If not, convert to power of two.
+        /// </summary>
+        /// <param name="inputResolution">The panorama resolution</param>
+        /// <returns></returns>
+        public static int CheckAndConvertPanoramaResolution(in int inputResolution)
+        {
+            int result;
+
+            // Check is power of two
+            if ((inputResolution != 0) && ((inputResolution & (inputResolution - 1)) == 0))
+            {
+                result = Mathf.Clamp(inputResolution, PANORAMA_RESOLUTION_MIN, PANORAMA_RESOLUTION_MAX);
+            }
+            else
+            {
+                // If not power of two, convert to power of two
+                int clampInputValue = Mathf.Clamp(inputResolution, PANORAMA_RESOLUTION_MIN, PANORAMA_RESOLUTION_MAX);
+                var base2LogarithmOfClampInputValue = (int)System.Math.Log(clampInputValue, 2);
+
+                var base2LogarithmOfClampInputValueLowerStepValue =
+                    (int)System.Math.Pow(2, base2LogarithmOfClampInputValue);
+                var base2LogarithmOfClampInputValueUpperStepValue =
+                    (int)System.Math.Pow(2, base2LogarithmOfClampInputValue + 1);
+
+                // Check which one is closer
+                if (clampInputValue - base2LogarithmOfClampInputValueLowerStepValue <=
+                    base2LogarithmOfClampInputValueUpperStepValue - clampInputValue)
+                {
+                    result = base2LogarithmOfClampInputValueLowerStepValue;
+                }
+                else
+                {
+                    result = base2LogarithmOfClampInputValueUpperStepValue;
+                }
+            }
+
+            return result;
+        }
+
+        #region Functions of changing camera culling mask
+
+        /// <summary>
+        /// Set the layer that the camera can watch
+        /// </summary>
+        /// <param name="targetCullingMask">The camera culling mask</param>
+        /// <param name="shownLayer">The layer number that you want to set the camera can watch</param>
+        /// <returns>The new camera culling mask after modify</returns>
+        public static LayerMask SetCameraVisualizationLayer(in LayerMask targetCullingMask, in int shownLayer)
+        {
+            LayerMask targetLayerMaskAfterModify = targetCullingMask;
+            targetLayerMaskAfterModify |= 1 << shownLayer;
+            return targetLayerMaskAfterModify;
+        }
+
+        /// <summary>
+        /// Set the layer that the camera cannot watch
+        /// </summary>
+        /// <param name="targetCullingMask">The camera culling mask</param>
+        /// <param name="hiddenLayer">The layer number that you want to set the camera cannot watch</param>
+        /// <returns>The new camera culling mask after modify</returns>
+        public static LayerMask SetCameraHiddenLayer(in LayerMask targetCullingMask, in int hiddenLayer)
+        {
+            LayerMask targetLayerMaskAfterModify = targetCullingMask;
+            targetLayerMaskAfterModify &= ~(1 << hiddenLayer);
+            return targetLayerMaskAfterModify;
+        }
+
+        /// <summary>
+        /// Inverse specific layer in camera culling mask
+        /// </summary>
+        /// <param name="targetCullingMask">The camera culling mask</param>
+        /// <param name="inverseLayer">The layer number that you want to inverse</param>
+        /// <returns>The new camera culling mask after modify</returns>
+        public static LayerMask InverseCameraLayer(in LayerMask targetCullingMask, in int inverseLayer)
+        {
+            LayerMask targetLayerMaskAfterModify = targetCullingMask;
+            targetLayerMaskAfterModify ^= 1 << inverseLayer;
+            return targetLayerMaskAfterModify;
+        }
+
+        #endregion
+
+        [System.Serializable]
+        public class SpectatorCameraAttribute
+        {
+            #region Serializable class field
+
+            public CameraSourceRef source;
+            public Vector3 position;
+            public Quaternion rotation;
+            public LayerMask layerMask;
+            public bool isSmoothCameraMovement;
+            public int smoothCameraMovementSpeed;
+            public bool isFrustumShowed;
+            public float verticalFov;
+            public SpectatorCameraPanoramaResolution panoramaResolution;
+            public TextureProcessHelper.PictureOutputFormat panoramaOutputFormat;
+            public TextureProcessHelper.PanoramaType panoramaOutputType;
+            public FrustumLineCount frustumLineCount;
+            public FrustumCenterLineCount frustumCenterLineCount;
+            public float frustumLineWidth;
+            public float frustumCenterLineWidth;
+            public Color frustumLineColor;
+            public Color frustumCenterLineColor;
+
+            #endregion
+
+            #region Constructor
+
+            public SpectatorCameraAttribute()
+            {
+            }
+
+            public SpectatorCameraAttribute(
+                CameraSourceRef source,
+                Vector3 position,
+                Quaternion rotation,
+                LayerMask layerMask,
+                bool isSmoothCameraMovement,
+                int smoothCameraMovementSpeed,
+                bool isFrustumShowed,
+                float verticalFov,
+                SpectatorCameraPanoramaResolution panoramaResolution,
+                TextureProcessHelper.PictureOutputFormat panoramaOutputFormat,
+                TextureProcessHelper.PanoramaType panoramaOutputType,
+                FrustumLineCount frustumLineCount,
+                FrustumCenterLineCount frustumCenterLineCount,
+                float frustumLineWidth,
+                float frustumCenterLineWidth,
+                Color frustumLineColor,
+                Color frustumCenterLineColor)
+            {
+                this.source = source;
+                this.position = position;
+                this.rotation = rotation;
+                this.layerMask = layerMask;
+                this.isSmoothCameraMovement = isSmoothCameraMovement;
+                this.smoothCameraMovementSpeed = smoothCameraMovementSpeed;
+                this.isFrustumShowed = isFrustumShowed;
+                this.verticalFov = verticalFov;
+                this.panoramaResolution = panoramaResolution;
+                this.panoramaOutputFormat = panoramaOutputFormat;
+                this.panoramaOutputType = panoramaOutputType;
+                this.frustumLineCount = frustumLineCount;
+                this.frustumCenterLineCount = frustumCenterLineCount;
+                this.frustumLineWidth = frustumLineWidth;
+                this.frustumCenterLineWidth = frustumCenterLineWidth;
+                this.frustumLineColor = frustumLineColor;
+                this.frustumCenterLineColor = frustumCenterLineColor;
+            }
+
+            #endregion
+        }
+
+        #region Enum definition
+
+        public enum CameraSourceRef
+        {
+            Hmd,
+            Tracker
+        }
+
+        public enum FrustumLineCount
+        {
+            None = 0,
+            Four = 4,
+            Eight = 8,
+            Sixteen = 16,
+            ThirtyTwo = 32,
+            OneTwentyEight = 128,
+        }
+
+        public enum FrustumCenterLineCount
+        {
+            None = 0,
+            Center = 1,
+            RuleOfThirds = 4,
+            CenterAndRuleOfThirds = 5,
+        }
+
+        public enum SpectatorCameraPanoramaResolution
+        {
+            _512 = 512,
+            _1024 = 1024,
+            _2048 = 2048,
+            _4096 = 4096
+        }
+
+        public enum AttributeFileLocation
+        {
+            ResourceFolder,
+            PersistentFolder
+        }
+
+        #endregion
+    }
+}

com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/Helper/SpectatorCameraHelper.cs.meta

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com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/Helper/TextureProcessHelper.cs.meta

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com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/ISpectatorCameraSetting.cs

@@ -0,0 +1,127 @@
+// Copyright HTC Corporation All Rights Reserved.
+
+using UnityEngine;
+using VIVE.OpenXR.Toolkits.Spectator.Helper;
+
+namespace VIVE.OpenXR.Toolkits.Spectator
+{
+    /// <summary>
+    /// Name: ISpectatorCameraSetting.cs
+    /// Role: Contract
+    /// Responsibility: Define the setting attribute of the spectator camera.
+    /// </summary>
+    public interface ISpectatorCameraSetting
+    {
+        #region Property
+
+        /// <summary>
+        /// The struct UnityEngine.LayerMask defines which layer the camera can see or not.
+        /// </summary>
+        LayerMask LayerMask { get; set; }
+        
+        /// <summary>
+        /// Whether or not to enable the feature of smoothing the spectator camera movement.
+        /// </summary>
+        bool IsSmoothCameraMovement { get; set; }
+        
+        /// <summary>
+        /// The speed factor to control the smoothing impact.
+        /// </summary>
+        int SmoothCameraMovementSpeed { get; set; }
+        
+        /// <summary>
+        /// True if visualize the spectator camera vertical FOV.
+        /// </summary>
+        bool IsFrustumShowed { get; set; }
+        
+        /// <summary>
+        /// The spectator camera vertical FOV.
+        /// </summary>
+        float VerticalFov { get; set; }
+        
+        /// <summary>
+        /// The panorama image resolution.
+        /// </summary>
+        SpectatorCameraHelper.SpectatorCameraPanoramaResolution PanoramaResolution { get; set; }
+        
+        /// <summary>
+        /// The panorama image output format.
+        /// </summary>
+        TextureProcessHelper.PictureOutputFormat PanoramaOutputFormat { get; set; }
+        
+        /// <summary>
+        /// The panorama types.
+        /// </summary>
+        TextureProcessHelper.PanoramaType PanoramaOutputType { get; set; }
+        
+        /// <summary>
+        /// How many frustum lines will be shown?
+        /// </summary>
+        SpectatorCameraHelper.FrustumLineCount FrustumLineCount { get; set; }
+        
+        /// <summary>
+        /// How many frustum center lines will be shown?
+        /// </summary>
+        SpectatorCameraHelper.FrustumCenterLineCount FrustumCenterLineCount { get; set; }
+        
+        /// <summary>
+        /// Frustum line width.
+        /// </summary>
+        float FrustumLineWidth { get; set; }
+        
+        /// <summary>
+        /// Frustum center line width.
+        /// </summary>
+        float FrustumCenterLineWidth { get; set; }
+        
+        /// <summary>
+        /// Frustum line color.
+        /// </summary>
+        Color FrustumLineColor { get; set; }
+        
+        /// <summary>
+        /// Frustum center line color.
+        /// </summary>
+        Color FrustumCenterLineColor { get; set; }
+
+        #endregion
+
+        #region Function
+
+        /// <summary>
+        /// Reset the spectator camera setting to the default value.
+        /// </summary>
+        void ResetSetting();
+        
+        /// <summary>
+        /// Export the current spectator camera setting as a JSON file and then save it to the resource folder or persistent folder.
+        /// </summary>
+        /// <param name="attributeFileLocation">The enum SpectatorCameraHelper.AttributeFileLocation.</param>
+        void ExportSetting2JsonFile(in SpectatorCameraHelper.AttributeFileLocation attributeFileLocation);
+        
+        /// <summary>
+        /// Load the setting (JSON) file via input full file path.
+        /// </summary>
+        /// <param name="jsonFilePath">The setting file’s full path (including file name and JSON extension).</param>
+        void LoadSettingFromJsonFile(in string jsonFilePath);
+
+        /// <summary>
+        /// Load the setting (JSON) file via input scene name, GameObject (hmd) name, and the file location (resource folder or persistent folder).
+        /// </summary>
+        /// <param name="sceneName">The scene name.</param>
+        /// <param name="gameObjectName">The GameObject name.</param>
+        /// <param name="attributeFileLocation"> The enum SpectatorCameraHelper.AttributeFileLocation.</param>
+        void LoadSettingFromJsonFile(
+            in string sceneName,
+            in string gameObjectName,
+            in SpectatorCameraHelper.AttributeFileLocation attributeFileLocation);
+
+        /// <summary>
+        /// Apply the spectator camera setting to the current component.
+        /// </summary>
+        /// <param name="data">The data you want to apply.</param>
+        void ApplyData(in SpectatorCameraHelper.SpectatorCameraAttribute data);
+
+        #endregion
+    }
+}

com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/ISpectatorCameraSetting.cs.meta

@@ -0,0 +1,11 @@
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com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/SpectatorCameraManager.Editor.cs

@@ -0,0 +1,748 @@
+// Copyright HTC Corporation All Rights Reserved.
+
+using System.Collections.Generic;
+using System.IO;
+using UnityEditor;
+using UnityEngine;
+using VIVE.OpenXR.Toolkits.Spectator.Helper;
+
+namespace VIVE.OpenXR.Toolkits.Spectator
+{
+    /// <summary>
+    /// Name: SpectatorCameraManager.Editor.cs
+    /// Role: General script use in Unity Editor only
+    /// Responsibility: Display the SpectatorCameraManager.cs in Unity Inspector
+    /// </summary>
+    public partial class SpectatorCameraManager
+    {
+        [SerializeField] private Material spectatorCameraViewMaterial;
+
+        /// <summary>
+        /// Material that show the spectator camera view
+        /// </summary>
+        private Material SpectatorCameraViewMaterial
+        {
+            // get; private set;
+            get => spectatorCameraViewMaterial;
+            set
+            {
+                spectatorCameraViewMaterial = value;
+                if (SpectatorCameraBased && value)
+                {
+                    SpectatorCameraBased.SpectatorCameraViewMaterial = value;
+                }
+            }
+        }
+
+#if UNITY_EDITOR
+        [field: SerializeField] private bool IsShowHmdPart { get; set; }
+        [field: SerializeField] private bool IsShowTrackerPart { get; set; }
+        [field: SerializeField] private bool IsRequireLoadJsonFile { get; set; }
+
+        [CustomEditor(typeof(SpectatorCameraManager))]
+        public class SpectatorCameraManagerEditor : UnityEditor.Editor
+        {
+            private static readonly Color HighlightRegionBackgroundColor = new Color(.2f, .2f, .2f, .1f);
+
+            private SerializedProperty IsShowHmdPart { get; set; }
+            private SerializedProperty IsShowTrackerPart { get; set; }
+            private SerializedProperty IsRequireLoadJsonFile { get; set; }
+            private List<string> JsonFileList { get; set; }
+            private Vector2 JsonFileScrollViewVector { get; set; }
+
+            private SerializedProperty IsSmoothCameraMovement { get; set; }
+            private SerializedProperty SmoothCameraMovementSpeed { get; set; }
+            private SerializedProperty PanoramaResolution { get; set; }
+            private SerializedProperty PanoramaOutputFormat { get; set; }
+            private SerializedProperty PanoramaOutputType { get; set; }
+
+            private SerializedProperty SpectatorCameraPrefab { get; set; }
+
+            private void OnEnable()
+            {
+                IsShowHmdPart = serializedObject.FindProperty(EditorHelper.PropertyName("IsShowHmdPart"));
+                IsShowTrackerPart = serializedObject.FindProperty(EditorHelper.PropertyName("IsShowTrackerPart"));
+                IsRequireLoadJsonFile =
+                    serializedObject.FindProperty(EditorHelper.PropertyName("IsRequireLoadJsonFile"));
+                JsonFileList = new List<string>();
+                JsonFileScrollViewVector = Vector2.zero;
+
+                IsSmoothCameraMovement =
+                    serializedObject.FindProperty(EditorHelper.PropertyName("IsSmoothCameraMovement"));
+                SmoothCameraMovementSpeed =
+                    serializedObject.FindProperty(EditorHelper.PropertyName("SmoothCameraMovementSpeed"));
+
+                PanoramaResolution = serializedObject.FindProperty(EditorHelper.PropertyName("PanoramaResolution"));
+                PanoramaOutputFormat = serializedObject.FindProperty(EditorHelper.PropertyName("PanoramaOutputFormat"));
+                PanoramaOutputType = serializedObject.FindProperty(EditorHelper.PropertyName("PanoramaOutputType"));
+
+                SpectatorCameraPrefab =
+                    serializedObject.FindProperty(EditorHelper.PropertyName("SpectatorCameraPrefab"));
+            }
+
+            public override void OnInspectorGUI()
+            {
+                // Just return if not "SpectatorCameraManager" class
+                if (!(target is SpectatorCameraManager))
+                {
+                    return;
+                }
+
+                serializedObject.Update();
+
+                DrawGUI();
+
+                serializedObject.ApplyModifiedProperties();
+            }
+
+            private void DrawGUI()
+            {
+                #region GUIStyle
+
+                var labelStyle = new GUIStyle()
+                {
+                    richText = true,
+                    alignment = TextAnchor.MiddleCenter,
+                    normal = new GUIStyleState
+                    {
+                        textColor = EditorGUIUtility.isProSkin ? Color.green : Color.black
+                    }
+                };
+
+                var resetButtonStyle = new GUIStyle(GUI.skin.button)
+                {
+                    fontStyle = FontStyle.Bold,
+                    normal = new GUIStyleState
+                    {
+                        textColor = EditorGUIUtility.isProSkin ? Color.yellow : Color.red
+                    },
+                    hover = new GUIStyleState
+                    {
+                        textColor = Color.red
+                    },
+                    active = new GUIStyleState
+                    {
+                        textColor = Color.cyan
+                    },
+                };
+
+                var boldButtonStyle = new GUIStyle(GUI.skin.button)
+                {
+                    fontStyle = FontStyle.Bold
+                };
+
+                #endregion
+
+                var script = (SpectatorCameraManager)target;
+
+                // Button for reset value
+                if (GUILayout.Button("Reset to default value", resetButtonStyle))
+                {
+                    Undo.RecordObject(target, "Reset SpectatorCameraManager to default value");
+                    EditorUtility.SetDirty(target);
+                    script.ResetSetting();
+                }
+
+                // Button for export setting
+                if (GUILayout.Button("Export Spectator Camera HMD Setting", boldButtonStyle))
+                {
+                    script.ExportSetting2JsonFile(SpectatorCameraHelper.AttributeFileLocation.ResourceFolder);
+                    AssetDatabase.Refresh();
+                }
+
+                #region Load Setting From JSON File
+
+                GUILayout.BeginHorizontal();
+                EditorGUI.BeginDisabledGroup(IsRequireLoadJsonFile.boolValue);
+                if (GUILayout.Button("Load Setting From JSON File in Resources Folder", boldButtonStyle) ||
+                    IsRequireLoadJsonFile.boolValue)
+                {
+                    IsRequireLoadJsonFile.boolValue = true;
+                    var searchPattern =
+                        $"{SpectatorCameraHelper.ATTRIBUTE_FILE_PREFIX_NAME}*.{SpectatorCameraHelper.ATTRIBUTE_FILE_EXTENSION}";
+
+                    if (JsonFileList == null)
+                    {
+                        JsonFileList = new List<string>();
+                    }
+
+                    JsonFileList.Clear();
+
+                    var dir = new DirectoryInfo(Path.Combine(Application.dataPath, "Resources"));
+                    var files = dir.GetFiles(searchPattern);
+                    foreach (var item in files)
+                    {
+                        JsonFileList.Add(item.Name);
+                    }
+
+                    if (JsonFileList.Count == 0)
+                    {
+                        Debug.Log(
+                            "Can't find any JSON file related to the spectator camera setting in the Resources folder.");
+                        IsRequireLoadJsonFile.boolValue = false;
+                    }
+                }
+
+                EditorGUI.EndDisabledGroup();
+
+                if (IsRequireLoadJsonFile.boolValue)
+                {
+                    if (GUILayout.Button("Cancel"))
+                    {
+                        IsRequireLoadJsonFile.boolValue = false;
+                    }
+                }
+
+                GUILayout.EndHorizontal();
+
+                if (IsRequireLoadJsonFile.boolValue)
+                {
+                    Rect r = EditorGUILayout.BeginVertical();
+
+                    JsonFileScrollViewVector = EditorGUILayout.BeginScrollView(JsonFileScrollViewVector,
+                        GUILayout.Width(r.width),
+                        GUILayout.Height(80));
+
+                    for (int i = 0; i < JsonFileList.Count; i++)
+                    {
+                        if (GUILayout.Button(JsonFileList[i]))
+                        {
+                            var path = Path.Combine(
+                                System.IO.Path.Combine(Application.dataPath, "Resources"),
+                                JsonFileList[i]);
+                            Undo.RecordObject(target, $"Load {JsonFileList[i]} setting to {target.name} SpectatorCameraManager");
+                            EditorUtility.SetDirty(target);
+                            script.LoadSettingFromJsonFile(path);
+                        }
+                    }
+
+                    EditorGUILayout.EndScrollView();
+
+                    EditorGUILayout.EndVertical();
+                }
+
+                #endregion
+
+                EditorGUILayout.LabelField("\n");
+
+                // Spectator camera prefab
+                EditorGUILayout.PropertyField(SpectatorCameraPrefab, new GUIContent("Spectator Camera Prefab"));
+                if (SpectatorCameraPrefab.objectReferenceValue != null &&
+                    PrefabUtility.GetPrefabAssetType(SpectatorCameraPrefab.objectReferenceValue) ==
+                    PrefabAssetType.NotAPrefab)
+                {
+                    // The assign object is scene object
+                    Debug.Log("Please assign the object as prefab only.");
+                    SpectatorCameraPrefab.objectReferenceValue = null;
+                }
+
+                EditorGUILayout.LabelField("\n");
+
+                EditorGUILayout.LabelField("<b>[ General Setting ]</b>", labelStyle);
+
+                // Setting of spectator camera reference source
+                // EditorGUILayout.PropertyField(CameraSourceRef, new GUIContent("Camera Source"));
+                EditorGUI.BeginChangeCheck();
+                var currentCameraSourceRef = (SpectatorCameraHelper.CameraSourceRef)
+                    EditorGUILayout.EnumPopup("Camera Source", script.CameraSourceRef);
+                if (EditorGUI.EndChangeCheck())
+                {
+                    Undo.RecordObject(target, "Modified SpectatorCameraManager CameraSourceRef");
+                    EditorUtility.SetDirty(target);
+                    script.CameraSourceRef = currentCameraSourceRef;
+                }
+
+                #region Tracker Region
+
+                if (script.CameraSourceRef == SpectatorCameraHelper.CameraSourceRef.Tracker)
+                {
+                    EditorGUI.BeginChangeCheck();
+                    var currentFollowSpectatorCameraTracker = EditorGUILayout.ObjectField(
+                        "Tracker",
+                        script.FollowSpectatorCameraTracker,
+                        typeof(SpectatorCameraTracker),
+                        true) as SpectatorCameraTracker;
+                    if (EditorGUI.EndChangeCheck())
+                    {
+                        Undo.RecordObject(target, "Modified SpectatorCameraManager FollowSpectatorCameraTracker");
+                        EditorUtility.SetDirty(target);
+                        script.FollowSpectatorCameraTracker = currentFollowSpectatorCameraTracker;
+                    }
+
+                    if (script.FollowSpectatorCameraTracker == null)
+                    {
+                        // The assign object is null
+                        EditorGUILayout.HelpBox("Please assign the SpectatorCameraTracker", MessageType.Info, false);
+                    }
+                    else if (PrefabUtility.GetPrefabAssetType(script.FollowSpectatorCameraTracker) !=
+                             PrefabAssetType.NotAPrefab)
+                    {
+                        // Don't allow assign object is prefab
+                        Debug.Log("Please assign the scene object.");
+                        script.FollowSpectatorCameraTracker = null;
+                    }
+                    else
+                    {
+                        // The assign object is scene object => ok
+                        EditorGUILayout.LabelField("\n");
+                        IsShowTrackerPart.boolValue =
+                            EditorGUILayout.Foldout(IsShowTrackerPart.boolValue, "Tracker Setting");
+                        if (IsShowTrackerPart.boolValue)
+                        {
+                            // If show the tracker setting
+                            Rect r = EditorGUILayout.BeginVertical();
+
+                            SpectatorCameraTracker trackerObject = script.FollowSpectatorCameraTracker;
+
+                            if (trackerObject != null)
+                            {
+                                EditorGUILayout.HelpBox(
+                                    $"You are now editing the tracker setting in \"{trackerObject.gameObject.name}\" GameObject",
+                                    MessageType.Info,
+                                    true);
+
+                                EditorGUI.BeginChangeCheck();
+                                var currentTrackerObjectLayerMask =
+                                    LayerMaskHelper.LayerMaskDrawer.LayerMaskField("Camera Layer Mask",
+                                        trackerObject.LayerMask);
+                                if (EditorGUI.EndChangeCheck())
+                                {
+                                    Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} LayerMask");
+                                    EditorUtility.SetDirty(trackerObject);
+                                    trackerObject.LayerMask = currentTrackerObjectLayerMask;
+                                }
+
+                                EditorGUI.BeginChangeCheck();
+                                var currentTrackerObjectIsSmoothCameraMovement=
+                                    EditorGUILayout.Toggle("Enable Smoothing Camera Movement",
+                                        trackerObject.IsSmoothCameraMovement);
+                                if (EditorGUI.EndChangeCheck())
+                                {
+                                    Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} IsSmoothCameraMovement");
+                                    EditorUtility.SetDirty(trackerObject);
+                                    trackerObject.IsSmoothCameraMovement = currentTrackerObjectIsSmoothCameraMovement;
+                                }
+
+                                if (trackerObject.IsSmoothCameraMovement)
+                                {
+                                    EditorGUILayout.LabelField("\n");
+
+                                    EditorGUILayout.LabelField("<b>[ Smooth Camera Movement Speed Setting ]</b>",
+                                        labelStyle);
+                                    EditorGUI.BeginChangeCheck();
+                                    var currentTrackerObjectSmoothCameraMovementSpeed =
+                                        EditorGUILayout.IntSlider(
+                                            new GUIContent("Speed of Smoothing Camera Movement"),
+                                            trackerObject.SmoothCameraMovementSpeed,
+                                            SpectatorCameraHelper.SMOOTH_CAMERA_MOVEMENT_MIN,
+                                            SpectatorCameraHelper.SMOOTH_CAMERA_MOVEMENT_MAX);
+                                    if (EditorGUI.EndChangeCheck())
+                                    {
+                                        Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} SmoothCameraMovementSpeed");
+                                        EditorUtility.SetDirty(trackerObject);
+                                        trackerObject.SmoothCameraMovementSpeed = currentTrackerObjectSmoothCameraMovementSpeed;
+                                    }
+
+                                    EditorGUILayout.LabelField("\n");
+                                }
+
+                                EditorGUI.BeginChangeCheck();
+                                // Spectator camera frustum show/hide
+                                var currentTrackerObjectIsFrustumShowed =
+                                    EditorGUILayout.Toggle("Enable Camera FOV Frustum", trackerObject.IsFrustumShowed);
+                                if (EditorGUI.EndChangeCheck())
+                                {
+                                    Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} IsFrustumShowed");
+                                    EditorUtility.SetDirty(trackerObject);
+                                    trackerObject.IsFrustumShowed = currentTrackerObjectIsFrustumShowed;
+                                }
+
+                                EditorGUILayout.LabelField("\n");
+
+                                #region VerticalFov
+
+                                EditorGUILayout.LabelField("<b>[ Vertical FOV Setting ]</b>", labelStyle);
+
+                                EditorGUI.BeginChangeCheck();
+                                var currentTrackerObjectVerticalFov = EditorGUILayout.Slider(
+                                    "Vertical FOV",
+                                    trackerObject.VerticalFov,
+                                    SpectatorCameraHelper.VERTICAL_FOV_MIN,
+                                    SpectatorCameraHelper.VERTICAL_FOV_MAX);
+                                if (EditorGUI.EndChangeCheck())
+                                {
+                                    Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} VerticalFov");
+                                    EditorUtility.SetDirty(trackerObject);
+                                    trackerObject.VerticalFov = currentTrackerObjectVerticalFov;
+                                }
+
+                                #endregion
+
+                                EditorGUILayout.LabelField("\n");
+
+                                #region Setting related to panorama capturing of spectator camera
+
+                                // Panorama resolution
+                                EditorGUILayout.LabelField("<b>[ Panorama Setting ]</b>", labelStyle);
+                                
+                                EditorGUI.BeginChangeCheck();
+                                // Panorama output resolution
+                                var currentTrackerObjectPanoramaResolution =
+                                    (SpectatorCameraHelper.SpectatorCameraPanoramaResolution)
+                                    EditorGUILayout.EnumPopup("Resolution", trackerObject.PanoramaResolution);
+                                if (EditorGUI.EndChangeCheck())
+                                {
+                                    Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} PanoramaResolution");
+                                    EditorUtility.SetDirty(trackerObject);
+                                    trackerObject.PanoramaResolution = currentTrackerObjectPanoramaResolution;
+                                }
+
+                                EditorGUI.BeginChangeCheck();
+                                // Panorama output format
+                                var currentTrackerObjectPanoramaOutputFormat = (TextureProcessHelper.PictureOutputFormat)
+                                    EditorGUILayout.EnumPopup("Output Format", trackerObject.PanoramaOutputFormat);
+                                if (EditorGUI.EndChangeCheck())
+                                {
+                                    Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} PanoramaOutputFormat");
+                                    EditorUtility.SetDirty(trackerObject);
+                                    trackerObject.PanoramaOutputFormat = currentTrackerObjectPanoramaOutputFormat;
+                                }
+
+                                EditorGUI.BeginChangeCheck();
+                                // Panorama output type
+                                var currentTrackerObjectPanoramaOutputType = (TextureProcessHelper.PanoramaType)
+                                    EditorGUILayout.EnumPopup("Output Type", trackerObject.PanoramaOutputType);
+                                if (EditorGUI.EndChangeCheck())
+                                {
+                                    Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} PanoramaOutputType");
+                                    EditorUtility.SetDirty(trackerObject);
+                                    trackerObject.PanoramaOutputType = currentTrackerObjectPanoramaOutputType;
+                                }
+
+                                #endregion
+
+                                EditorGUILayout.LabelField("\n");
+
+                                #region Setting related to frustum
+
+                                if (trackerObject.IsFrustumShowed)
+                                {
+                                    EditorGUILayout.LabelField("<b>[ Frustum Setting ]</b>",
+                                        labelStyle);
+
+                                    #region Count of frustum and frustum center line
+
+                                    EditorGUI.BeginChangeCheck();
+                                    var currentTrackerObjectFrustumLineCount = (SpectatorCameraHelper.FrustumLineCount)
+                                        EditorGUILayout.EnumPopup("Frustum Line Total", trackerObject.FrustumLineCount);
+                                    if (EditorGUI.EndChangeCheck())
+                                    {
+                                        Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} FrustumLineCount");
+                                        EditorUtility.SetDirty(trackerObject);
+                                        trackerObject.FrustumLineCount = currentTrackerObjectFrustumLineCount;
+                                    }
+                                    
+                                    EditorGUI.BeginChangeCheck();
+                                    var currentTrackerObjectFrustumCenterLineCount = 
+                                        (SpectatorCameraHelper.FrustumCenterLineCount)
+                                        EditorGUILayout.EnumPopup("Frustum Center Line Total",
+                                            trackerObject.FrustumCenterLineCount);
+                                    if (EditorGUI.EndChangeCheck())
+                                    {
+                                        Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} FrustumCenterLineCount");
+                                        EditorUtility.SetDirty(trackerObject);
+                                        trackerObject.FrustumCenterLineCount = currentTrackerObjectFrustumCenterLineCount;
+                                    }
+
+                                    #endregion
+
+                                    EditorGUILayout.LabelField("\n");
+
+                                    #region Width of frustum and frustum center line
+
+                                    EditorGUI.BeginChangeCheck();
+                                    var currentTrackerObjectFrustumLineWidth =
+                                        EditorGUILayout.Slider(
+                                            "Frustum Line Width",
+                                            trackerObject.FrustumLineWidth,
+                                            SpectatorCameraHelper.FRUSTUM_LINE_WIDTH_MIN,
+                                            SpectatorCameraHelper.FRUSTUM_LINE_WIDTH_MAX);
+                                    if (EditorGUI.EndChangeCheck())
+                                    {
+                                        Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} FrustumLineWidth");
+                                        EditorUtility.SetDirty(trackerObject);
+                                        trackerObject.FrustumLineWidth = currentTrackerObjectFrustumLineWidth;
+                                    }
+                                    
+                                    EditorGUI.BeginChangeCheck();
+                                    var currentTrackerObjectFrustumCenterLineWidth =
+                                        EditorGUILayout.Slider(
+                                            "Frustum Center Line Width",
+                                            trackerObject.FrustumCenterLineWidth,
+                                            SpectatorCameraHelper.FRUSTUM_CENTER_LINE_WIDTH_MIN,
+                                            SpectatorCameraHelper.FRUSTUM_CENTER_LINE_WIDTH_MAX);
+                                    if (EditorGUI.EndChangeCheck())
+                                    {
+                                        Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} FrustumCenterLineWidth");
+                                        EditorUtility.SetDirty(trackerObject);
+                                        trackerObject.FrustumCenterLineWidth = currentTrackerObjectFrustumCenterLineWidth;
+                                    }
+
+                                    #endregion
+
+                                    EditorGUILayout.LabelField("\n");
+
+                                    #region Material of frustum and frustum center line
+
+                                    EditorGUI.BeginChangeCheck();
+                                    var currentTrackerObjectFrustumLineColor = EditorGUILayout.ColorField(
+                                        "Frustum Line Color", trackerObject.FrustumLineColor);
+                                    if (EditorGUI.EndChangeCheck())
+                                    {
+                                        Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} FrustumLineColor");
+                                        EditorUtility.SetDirty(trackerObject);
+                                        trackerObject.FrustumLineColor = currentTrackerObjectFrustumLineColor;
+                                    }
+                                    
+                                    EditorGUI.BeginChangeCheck();
+                                    var currentTrackerObjectFrustumCenterLineColor = EditorGUILayout.ColorField(
+                                        "Frustum Center Line Color",
+                                        trackerObject.FrustumCenterLineColor);
+                                    if (EditorGUI.EndChangeCheck())
+                                    {
+                                        Undo.RecordObject(trackerObject, $"Modified {trackerObject.name} FrustumCenterLineColor");
+                                        EditorUtility.SetDirty(trackerObject);
+                                        trackerObject.FrustumCenterLineColor = currentTrackerObjectFrustumCenterLineColor;
+                                    }
+
+                                    #endregion
+                                }
+
+                                #endregion
+
+                                EditorGUILayout.EndVertical();
+                                r = new Rect(r.x, r.y, r.width, r.height);
+                                EditorGUI.DrawRect(r, HighlightRegionBackgroundColor);
+
+                                EditorGUILayout.LabelField("\n");
+                            }
+                        }
+                    }
+                }
+
+                #endregion
+
+                #region HMD Region
+
+                IsShowHmdPart.boolValue = EditorGUILayout.Foldout(IsShowHmdPart.boolValue, "HMD Setting");
+                if (IsShowHmdPart.boolValue)
+                {
+                    Rect r = EditorGUILayout.BeginVertical();
+
+                    EditorGUI.BeginChangeCheck();
+                    // Setting of spectator camera layer mask
+                    var currentLayerMask =
+                        LayerMaskHelper.LayerMaskDrawer.LayerMaskField("Camera Layer Mask", script.LayerMask);
+                    if (EditorGUI.EndChangeCheck())
+                    {
+                        Undo.RecordObject(target, "Modified SpectatorCameraManager LayerMask");
+                        EditorUtility.SetDirty(target);
+                        script.LayerMask = currentLayerMask;
+                    }
+
+                    // Setting of smooth spectator camera movement
+                    EditorGUILayout.PropertyField(IsSmoothCameraMovement,
+                        new GUIContent("Enable Smoothing Camera Movement"));
+                    if (IsSmoothCameraMovement.boolValue)
+                    {
+                        EditorGUILayout.LabelField("\n");
+
+                        EditorGUILayout.LabelField("<b>[ Smooth Camera Movement Speed Setting ]</b>", labelStyle);
+
+                        // Setting of smooth spectator camera movement speed
+                        EditorGUILayout.IntSlider(
+                            SmoothCameraMovementSpeed,
+                            SpectatorCameraHelper.SMOOTH_CAMERA_MOVEMENT_MIN,
+                            SpectatorCameraHelper.SMOOTH_CAMERA_MOVEMENT_MAX,
+                            "Speed of Smoothing Camera Movement");
+
+                        EditorGUILayout.LabelField("\n");
+                    }
+
+                    EditorGUI.BeginChangeCheck();
+                    // Spectator camera frustum show/hide
+                    var currentIsFrustumShowed =
+                        EditorGUILayout.Toggle("Enable Camera FOV Frustum", script.IsFrustumShowed);
+                    if (EditorGUI.EndChangeCheck())
+                    {
+                        Undo.RecordObject(target, "Modified SpectatorCameraManager IsFrustumShowed");
+                        EditorUtility.SetDirty(target);
+                        script.IsFrustumShowed = currentIsFrustumShowed;
+                    }
+
+                    EditorGUILayout.LabelField("\n");
+
+                    #region VerticalFov
+
+                    EditorGUILayout.LabelField("<b>[ Vertical FOV Setting ]</b>", labelStyle);
+
+                    EditorGUI.BeginChangeCheck();
+                    // FOV
+                    var currentVerticalFov = EditorGUILayout.Slider(
+                        "Vertical FOV",
+                        script.VerticalFov,
+                        SpectatorCameraHelper.VERTICAL_FOV_MIN,
+                        SpectatorCameraHelper.VERTICAL_FOV_MAX);
+                    if (EditorGUI.EndChangeCheck())
+                    {
+                        Undo.RecordObject(target, "Modified SpectatorCameraManager VerticalFov");
+                        EditorUtility.SetDirty(target);
+                        script.VerticalFov = currentVerticalFov;
+                    }
+
+                    #endregion
+
+                    EditorGUILayout.LabelField("\n");
+
+                    #region Setting related to panorama capturing of spectator camera
+
+                    // Panorama resolution
+                    EditorGUILayout.LabelField("<b>[ Panorama Setting ]</b>", labelStyle);
+                    EditorGUILayout.PropertyField(PanoramaResolution, new GUIContent("Resolution"));
+
+                    // Panorama output format
+                    EditorGUILayout.PropertyField(PanoramaOutputFormat, new GUIContent("Output Format"));
+
+                    // Panorama output type
+                    EditorGUILayout.PropertyField(PanoramaOutputType, new GUIContent("Output Type"));
+
+                    #endregion
+
+                    #region Setting related to frustum
+
+                    if (script.IsFrustumShowed)
+                    {
+                        EditorGUILayout.LabelField("\n");
+
+                        EditorGUILayout.LabelField("<b>[ Frustum Setting ]</b>", labelStyle);
+
+                        EditorGUI.BeginChangeCheck();
+                        // Count of frustum line
+                        var currentFrustumLineCount = (SpectatorCameraHelper.FrustumLineCount)
+                            EditorGUILayout.EnumPopup("Frustum Line Total", script.FrustumLineCount);
+                        if (EditorGUI.EndChangeCheck())
+                        {
+                            Undo.RecordObject(target, "Modified SpectatorCameraManager FrustumLineCount");
+                            EditorUtility.SetDirty(target);
+                            script.FrustumLineCount = currentFrustumLineCount;
+                        }
+                        
+                        EditorGUI.BeginChangeCheck();
+                        // Count of frustum center line
+                        var currentFrustumCenterLineCount = (SpectatorCameraHelper.FrustumCenterLineCount)
+                            EditorGUILayout.EnumPopup("Frustum Center Line Total", script.FrustumCenterLineCount);
+                        if (EditorGUI.EndChangeCheck())
+                        {
+                            Undo.RecordObject(target, "Modified SpectatorCameraManager FrustumCenterLineCount");
+                            EditorUtility.SetDirty(target);
+                            script.FrustumCenterLineCount = currentFrustumCenterLineCount;
+                        }
+
+                        EditorGUILayout.LabelField("\n");
+
+                        EditorGUI.BeginChangeCheck();
+                        // Width of frustum line
+                        var currentFrustumLineWidth =
+                            EditorGUILayout.Slider(
+                                "Frustum Line Width",
+                                script.FrustumLineWidth,
+                                SpectatorCameraHelper.FRUSTUM_LINE_WIDTH_MIN,
+                                SpectatorCameraHelper.FRUSTUM_LINE_WIDTH_MAX);
+                        if (EditorGUI.EndChangeCheck())
+                        {
+                            Undo.RecordObject(target, "Modified SpectatorCameraManager FrustumLineWidth");
+                            EditorUtility.SetDirty(target);
+                            script.FrustumLineWidth = currentFrustumLineWidth;
+                        }
+                        
+                        EditorGUI.BeginChangeCheck();
+                        // Width of frustum center line
+                        var currentFrustumCenterLineWidth =
+                            EditorGUILayout.Slider(
+                                "Frustum Center Line Width",
+                                script.FrustumCenterLineWidth,
+                                SpectatorCameraHelper.FRUSTUM_CENTER_LINE_WIDTH_MIN,
+                                SpectatorCameraHelper.FRUSTUM_CENTER_LINE_WIDTH_MAX);
+                        if (EditorGUI.EndChangeCheck())
+                        {
+                            Undo.RecordObject(target, "Modified SpectatorCameraManager FrustumCenterLineWidth");
+                            EditorUtility.SetDirty(target);
+                            script.FrustumCenterLineWidth = currentFrustumCenterLineWidth;
+                        }
+
+                        EditorGUILayout.LabelField("\n");
+
+                        EditorGUI.BeginChangeCheck();
+                        // Color of frustum line
+                        var currentFrustumLineColor = EditorGUILayout.ColorField(
+                            "Frustum Line Color", script.FrustumLineColor);
+                        if (EditorGUI.EndChangeCheck())
+                        {
+                            Undo.RecordObject(target, "Modified SpectatorCameraManager FrustumLineColor");
+                            EditorUtility.SetDirty(target);
+                            script.FrustumLineColor = currentFrustumLineColor;
+                        }
+                        
+                        EditorGUI.BeginChangeCheck();
+                        // Color of frustum center line
+                        var currentFrustumCenterLineColor = EditorGUILayout.ColorField(
+                            "Frustum Center Line Color",
+                            script.FrustumCenterLineColor);
+                        if (EditorGUI.EndChangeCheck())
+                        {
+                            Undo.RecordObject(target, "Modified SpectatorCameraManager FrustumCenterLineColor");
+                            EditorUtility.SetDirty(target);
+                            script.FrustumCenterLineColor = currentFrustumCenterLineColor;
+                        }
+                    }
+
+                    #endregion
+
+                    EditorGUILayout.EndVertical();
+                    r = new Rect(r.x, r.y, r.width, r.height);
+                    EditorGUI.DrawRect(r, HighlightRegionBackgroundColor);
+                }
+
+                #endregion
+
+                EditorGUILayout.LabelField("\n");
+
+                #region Test 360 Output
+
+                EditorGUILayout.LabelField("<b>[ Debug Setting ]</b>", labelStyle);
+
+                EditorGUI.BeginChangeCheck();
+                var currentSpectatorCameraViewMaterial = EditorGUILayout.ObjectField(
+                    "Spectator Camera View Material",
+                    script.SpectatorCameraViewMaterial,
+                    typeof(Material),
+                    false) as Material;
+                if (EditorGUI.EndChangeCheck())
+                {
+                    Undo.RecordObject(target, "Modified SpectatorCameraManager SpectatorCameraViewMaterial");
+                    EditorUtility.SetDirty(target);
+                    script.SpectatorCameraViewMaterial = currentSpectatorCameraViewMaterial;
+                }
+
+                EditorGUILayout.HelpBox("Test - Output 360 photo", MessageType.Info, true);
+                if (GUILayout.Button("Test - Output 360 photo"))
+                {
+                    script.CaptureSpectatorCamera360Photo();
+                }
+
+                #endregion
+            }
+        }
+#endif
+    }
+}

com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/SpectatorCameraManager.Editor.cs.meta

@@ -0,0 +1,11 @@
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+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/SpectatorCameraManager.cs.meta

@@ -0,0 +1,11 @@
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+guid: fda46617f9e447e47863938d3006d5bd
+MonoImporter:
+  externalObjects: {}
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com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/SpectatorCameraTracker.Editor.cs

@@ -0,0 +1,374 @@
+// Copyright HTC Corporation All Rights Reserved.
+
+#if UNITY_EDITOR
+using System.Collections.Generic;
+using System.IO;
+using UnityEditor;
+using UnityEngine;
+using VIVE.OpenXR.Toolkits.Spectator.Helper;
+
+namespace VIVE.OpenXR.Toolkits.Spectator
+{
+    /// <summary>
+    /// Name: SpectatorCameraTracker.Editor.cs
+    /// Role: General script use in Unity Editor only
+    /// Responsibility: Display the SpectatorCameraTracker.cs in Unity Inspector
+    /// </summary>
+    public partial class SpectatorCameraTracker
+    {
+        [field: SerializeField] private bool IsRequireLoadJsonFile { get; set; }
+
+        [CustomEditor(typeof(SpectatorCameraTracker))]
+        public class SpectatorCameraTrackerSettingEditor : UnityEditor.Editor
+        {
+            private SerializedProperty IsRequireLoadJsonFile { get; set; }
+            private List<string> JsonFileList { get; set; }
+            private Vector2 JsonFileScrollViewVector { get; set; }
+
+            private SerializedProperty IsSmoothCameraMovement { get; set; }
+            private SerializedProperty SmoothCameraMovementSpeed { get; set; }
+            private SerializedProperty PanoramaResolution { get; set; }
+            private SerializedProperty PanoramaOutputFormat { get; set; }
+            private SerializedProperty PanoramaOutputType { get; set; }
+
+            private void OnEnable()
+            {
+                IsRequireLoadJsonFile =
+                    serializedObject.FindProperty(EditorHelper.PropertyName("IsRequireLoadJsonFile"));
+                JsonFileList = new List<string>();
+                JsonFileScrollViewVector = Vector2.zero;
+
+                IsSmoothCameraMovement =
+                    serializedObject.FindProperty(EditorHelper.PropertyName("IsSmoothCameraMovement"));
+                SmoothCameraMovementSpeed =
+                    serializedObject.FindProperty(EditorHelper.PropertyName("SmoothCameraMovementSpeed"));
+                PanoramaResolution = serializedObject.FindProperty(EditorHelper.PropertyName("PanoramaResolution"));
+                PanoramaOutputFormat = serializedObject.FindProperty(EditorHelper.PropertyName("PanoramaOutputFormat"));
+                PanoramaOutputType = serializedObject.FindProperty(EditorHelper.PropertyName("PanoramaOutputType"));
+            }
+
+            public override void OnInspectorGUI()
+            {
+                // Just return if not "SpectatorCameraTrackerSetting" class
+                if (!(target is SpectatorCameraTracker))
+                {
+                    return;
+                }
+
+                serializedObject.Update();
+
+                DrawGUI();
+
+                serializedObject.ApplyModifiedProperties();
+            }
+
+            private void DrawGUI()
+            {
+                #region GUIStyle
+
+                var labelStyle = new GUIStyle()
+                {
+                    richText = true,
+                    alignment = TextAnchor.MiddleCenter,
+                    normal = new GUIStyleState
+                    {
+                        textColor = EditorGUIUtility.isProSkin ? Color.green : Color.black
+                    }
+                };
+
+                var resetButtonStyle = new GUIStyle(GUI.skin.button)
+                {
+                    fontStyle = FontStyle.Bold,
+                    normal = new GUIStyleState
+                    {
+                        textColor = EditorGUIUtility.isProSkin ? Color.yellow : Color.red
+                    },
+                    hover = new GUIStyleState
+                    {
+                        textColor = Color.red
+                    },
+                    active = new GUIStyleState
+                    {
+                        textColor = Color.cyan
+                    },
+                };
+
+                var boldButtonStyle = new GUIStyle(GUI.skin.button)
+                {
+                    fontStyle = FontStyle.Bold
+                };
+
+                #endregion
+
+                var script = (SpectatorCameraTracker)target;
+
+                // Button for reset value
+                if (GUILayout.Button("Reset to default value", resetButtonStyle))
+                {
+                    Undo.RecordObject(target, $"Reset {target.name} SpectatorCameraTracker to default value");
+                    EditorUtility.SetDirty(target);
+                    script.ResetSetting();
+                }
+
+                // Button for export setting
+                if (GUILayout.Button("Export Spectator Camera Tracker Setting", boldButtonStyle))
+                {
+                    script.ExportSetting2JsonFile(SpectatorCameraHelper.AttributeFileLocation.ResourceFolder);
+                    AssetDatabase.Refresh();
+                }
+
+                #region Load setting from JSON file
+
+                GUILayout.BeginHorizontal();
+                EditorGUI.BeginDisabledGroup(IsRequireLoadJsonFile.boolValue);
+                if (GUILayout.Button("Load Setting From JSON File in Resources Folder", boldButtonStyle) ||
+                    IsRequireLoadJsonFile.boolValue)
+                {
+                    IsRequireLoadJsonFile.boolValue = true;
+                    var searchPattern =
+                        $"{SpectatorCameraHelper.ATTRIBUTE_FILE_PREFIX_NAME}*.{SpectatorCameraHelper.ATTRIBUTE_FILE_EXTENSION}";
+
+                    if (JsonFileList == null)
+                    {
+                        JsonFileList = new List<string>();
+                    }
+
+                    JsonFileList.Clear();
+
+                    var dir = new DirectoryInfo(Path.Combine(Application.dataPath, "Resources"));
+                    var files = dir.GetFiles(searchPattern);
+                    foreach (var item in files)
+                    {
+                        JsonFileList.Add(item.Name);
+                    }
+
+                    if (JsonFileList.Count == 0)
+                    {
+                        Debug.Log(
+                            "Can't find any JSON file related to the spectator camera setting in the Resources folder.");
+                        IsRequireLoadJsonFile.boolValue = false;
+                    }
+                }
+
+                EditorGUI.EndDisabledGroup();
+
+                if (IsRequireLoadJsonFile.boolValue)
+                {
+                    if (GUILayout.Button("Cancel"))
+                    {
+                        IsRequireLoadJsonFile.boolValue = false;
+                    }
+                }
+
+                GUILayout.EndHorizontal();
+
+                if (IsRequireLoadJsonFile.boolValue)
+                {
+                    Rect r = EditorGUILayout.BeginVertical();
+
+                    JsonFileScrollViewVector = EditorGUILayout.BeginScrollView(JsonFileScrollViewVector,
+                        GUILayout.Width(r.width),
+                        GUILayout.Height(80));
+
+                    for (int i = 0; i < JsonFileList.Count; i++)
+                    {
+                        if (GUILayout.Button(JsonFileList[i]))
+                        {
+                            var path = Path.Combine(
+                                Path.Combine(Application.dataPath, "Resources"),
+                                JsonFileList[i]);
+                            Undo.RecordObject(target, $"Load {JsonFileList[i]} setting to {target.name} SpectatorCameraTracker");
+                            EditorUtility.SetDirty(target);
+                            script.LoadSettingFromJsonFile(path);
+                        }
+                    }
+
+                    EditorGUILayout.EndScrollView();
+
+                    EditorGUILayout.EndVertical();
+                }
+
+                #endregion
+
+                EditorGUILayout.LabelField("\n");
+
+                #region Setting related to spectator camera and its frustum show/hide
+
+                EditorGUILayout.LabelField("<b>[ General Setting ]</b>", labelStyle);
+
+                EditorGUI.BeginChangeCheck();
+                // Setting of spectator camera layer mask
+                var currentLayerMask =
+                    LayerMaskHelper.LayerMaskDrawer.LayerMaskField("Camera Layer Mask", script.LayerMask);
+                if (EditorGUI.EndChangeCheck())
+                {
+                    Undo.RecordObject(target, $"Modified {target.name} SpectatorCameraTracker LayerMask");
+                    EditorUtility.SetDirty(target);
+                    script.LayerMask = currentLayerMask;
+                }
+
+                // Setting of smooth spectator camera movement
+                EditorGUILayout.PropertyField(IsSmoothCameraMovement,
+                    new GUIContent("Enable Smoothing Camera Movement"));
+                if (IsSmoothCameraMovement.boolValue)
+                {
+                    EditorGUILayout.LabelField("\n");
+
+                    EditorGUILayout.LabelField("<b>[ Smooth Camera Movement Speed Setting ]</b>", labelStyle);
+
+                    EditorGUILayout.IntSlider(
+                        SmoothCameraMovementSpeed,
+                        SpectatorCameraHelper.SMOOTH_CAMERA_MOVEMENT_MIN,
+                        SpectatorCameraHelper.SMOOTH_CAMERA_MOVEMENT_MAX,
+                        "Speed of Smoothing Camera Movement");
+
+                    EditorGUILayout.LabelField("\n");
+                }
+
+                EditorGUI.BeginChangeCheck();
+                // Spectator camera frustum show/hide
+                var currentIsFrustumShowed =
+                    EditorGUILayout.Toggle("Enable Camera FOV Frustum", script.IsFrustumShowed);
+                if (EditorGUI.EndChangeCheck())
+                {
+                    Undo.RecordObject(target, $"Modified {target.name} SpectatorCameraTracker IsFrustumShowed");
+                    EditorUtility.SetDirty(target);
+                    script.IsFrustumShowed = currentIsFrustumShowed;
+                }
+
+                #endregion
+
+                EditorGUILayout.LabelField("\n");
+
+                #region VerticalFov
+
+                EditorGUILayout.LabelField("<b>[ Vertical FOV Setting ]</b>", labelStyle);
+
+                EditorGUI.BeginChangeCheck();
+                // FOV
+                var currentVerticalFov = EditorGUILayout.Slider(
+                    "Vertical FOV",
+                    script.VerticalFov,
+                    SpectatorCameraHelper.VERTICAL_FOV_MIN,
+                    SpectatorCameraHelper.VERTICAL_FOV_MAX);
+                if (EditorGUI.EndChangeCheck())
+                {
+                    Undo.RecordObject(target, $"Modified {target.name} SpectatorCameraTracker VerticalFov");
+                    EditorUtility.SetDirty(target);
+                    script.VerticalFov = currentVerticalFov;
+                }
+
+                #endregion
+
+                EditorGUILayout.LabelField("\n");
+
+                #region Setting related to panorama capturing of spectator camera
+
+                // Panorama resolution
+                EditorGUILayout.LabelField("<b>[ Panorama Setting ]</b>", labelStyle);
+                EditorGUILayout.PropertyField(PanoramaResolution, new GUIContent("Resolution"));
+
+                // Panorama output format
+                EditorGUILayout.PropertyField(PanoramaOutputFormat, new GUIContent("Output Format"));
+
+                // Panorama output type
+                EditorGUILayout.PropertyField(PanoramaOutputType, new GUIContent("Output Type"));
+
+                #endregion
+
+                EditorGUILayout.LabelField("\n");
+
+                #region Setting related to frustum
+
+                if (script.IsFrustumShowed)
+                {
+                    EditorGUILayout.LabelField("<b>[ Frustum Setting ]</b>", labelStyle);
+
+                    EditorGUI.BeginChangeCheck();
+                    // Count of frustum line
+                    var currentFrustumLineCount = (SpectatorCameraHelper.FrustumLineCount)
+                        EditorGUILayout.EnumPopup("Frustum Line Total", script.FrustumLineCount);
+                    if (EditorGUI.EndChangeCheck())
+                    {
+                        Undo.RecordObject(target, $"Modified {target.name} SpectatorCameraTracker FrustumLineCount");
+                        EditorUtility.SetDirty(target);
+                        script.FrustumLineCount = currentFrustumLineCount;
+                    }
+                    
+                    EditorGUI.BeginChangeCheck();
+                    // Count of frustum center line
+                    var currentFrustumCenterLineCount = (SpectatorCameraHelper.FrustumCenterLineCount)
+                        EditorGUILayout.EnumPopup("Frustum Center Line Total", script.FrustumCenterLineCount);
+                    if (EditorGUI.EndChangeCheck())
+                    {
+                        Undo.RecordObject(target, $"Modified {target.name} SpectatorCameraTracker FrustumCenterLineCount");
+                        EditorUtility.SetDirty(target);
+                        script.FrustumCenterLineCount = currentFrustumCenterLineCount;
+                    }
+
+                    EditorGUILayout.LabelField("\n");
+
+                    EditorGUI.BeginChangeCheck();
+                    // Width of frustum line
+                    var currentFrustumLineWidth =
+                        EditorGUILayout.Slider(
+                            "Frustum Line Width",
+                            script.FrustumLineWidth,
+                            SpectatorCameraHelper.FRUSTUM_LINE_WIDTH_MIN,
+                            SpectatorCameraHelper.FRUSTUM_LINE_WIDTH_MAX);
+                    if (EditorGUI.EndChangeCheck())
+                    {
+                        Undo.RecordObject(target, $"Modified {target.name} SpectatorCameraTracker FrustumLineWidth");
+                        EditorUtility.SetDirty(target);
+                        script.FrustumLineWidth = currentFrustumLineWidth;
+                    }
+                    
+                    EditorGUI.BeginChangeCheck();
+                    // Width of frustum center line
+                    var currentFrustumCenterLineWidth =
+                        EditorGUILayout.Slider(
+                            "Frustum Center Line Width",
+                            script.FrustumCenterLineWidth,
+                            SpectatorCameraHelper.FRUSTUM_CENTER_LINE_WIDTH_MIN,
+                            SpectatorCameraHelper.FRUSTUM_CENTER_LINE_WIDTH_MAX);
+                    if (EditorGUI.EndChangeCheck())
+                    {
+                        Undo.RecordObject(target, $"Modified {target.name} SpectatorCameraTracker FrustumCenterLineWidth");
+                        EditorUtility.SetDirty(target);
+                        script.FrustumCenterLineWidth = currentFrustumCenterLineWidth;
+                    }
+
+                    EditorGUILayout.LabelField("\n");
+
+                    EditorGUI.BeginChangeCheck();
+                    // Color of frustum line
+                    var currentFrustumLineColor = EditorGUILayout.ColorField(
+                        "Frustum Line Color", script.FrustumLineColor);
+                    if (EditorGUI.EndChangeCheck())
+                    {
+                        Undo.RecordObject(target, $"Modified {target.name} SpectatorCameraTracker FrustumLineColor");
+                        EditorUtility.SetDirty(target);
+                        script.FrustumLineColor = currentFrustumLineColor;
+                    }
+                    
+                    EditorGUI.BeginChangeCheck();
+                    // Color of frustum center line
+                    var currentFrustumCenterLineColor = EditorGUILayout.ColorField(
+                        "Frustum Center Line Color",
+                        script.FrustumCenterLineColor);
+                    if (EditorGUI.EndChangeCheck())
+                    {
+                        Undo.RecordObject(target, $"Modified {target.name} SpectatorCameraTracker FrustumCenterLineColor");
+                        EditorUtility.SetDirty(target);
+                        script.FrustumCenterLineColor = currentFrustumCenterLineColor;
+                    }
+
+                    EditorGUILayout.LabelField("\n");
+                }
+
+                #endregion
+            }
+        }
+    }
+}
+#endif

com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/SpectatorCameraTracker.Editor.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 523f24465def2a246b2f27dca663a530
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
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+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/SpectatorCameraTracker.cs

@@ -0,0 +1,479 @@
+// Copyright HTC Corporation All Rights Reserved.
+
+using System;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+using VIVE.OpenXR.Toolkits.Spectator.Helper;
+
+namespace VIVE.OpenXR.Toolkits.Spectator
+{
+    /// <summary>
+    /// Name: SpectatorCameraTracker.cs
+    /// Role: General script
+    /// Responsibility: To implement the spectator camera tracker setting and I/O function
+    /// </summary>
+    public partial class SpectatorCameraTracker : MonoBehaviour, ISpectatorCameraSetting
+    {
+        private const int TryAddTrackerIntervalSecond = 1;
+        
+        private SpectatorCameraManager SpectatorCameraManager => SpectatorCameraManager.Instance;
+        public SpectatorCameraHelper.CameraSourceRef CameraSourceRef => SpectatorCameraHelper.CameraSourceRef.Tracker;
+
+        public Vector3 Position
+        {
+            get => transform.position;
+            set => transform.position = value;
+        }
+
+        public Quaternion Rotation
+        {
+            get => transform.rotation;
+            set => transform.rotation = value;
+        }
+
+        [SerializeField] private LayerMask layerMask = SpectatorCameraHelper.LayerMaskDefault;
+
+        public LayerMask LayerMask
+        {
+            get => layerMask;
+            set
+            {
+                if (layerMask == value)
+                {
+                    return;
+                }
+
+                layerMask = value;
+
+                if (Application.isPlaying &&
+                    SpectatorCameraManager != null &&
+                    SpectatorCameraManager.IsCameraSourceAsTracker() &&
+                    SpectatorCameraManager.IsFollowTrackerEqualTo(this))
+                {
+                    SpectatorCameraManager.SpectatorCameraBased.SpectatorCamera.cullingMask = layerMask;
+                }
+            }
+        }
+
+        [field: SerializeField]
+        public bool IsSmoothCameraMovement { get; set; } = SpectatorCameraHelper.IS_SMOOTH_CAMERA_MOVEMENT_DEFAULT;
+
+        [field: SerializeField]
+        public int SmoothCameraMovementSpeed { get; set; } = SpectatorCameraHelper.SMOOTH_CAMERA_MOVEMENT_SPEED_DEFAULT;
+
+        [SerializeField] private bool isFrustumShowed = SpectatorCameraHelper.IS_FRUSTUM_SHOWED_DEFAULT;
+
+        public bool IsFrustumShowed
+        {
+            get => isFrustumShowed;
+            set
+            {
+                if (isFrustumShowed == value)
+                {
+                    return;
+                }
+
+                isFrustumShowed = value;
+
+                if (Application.isPlaying &&
+                    SpectatorCameraManager != null &&
+                    SpectatorCameraManager.IsCameraSourceAsTracker() &&
+                    SpectatorCameraManager.IsFollowTrackerEqualTo(this))
+                {
+                    SpectatorCameraManager.SetupFrustum();
+                }
+            }
+        }
+
+        [SerializeField] private float verticalFov = SpectatorCameraHelper.VERTICAL_FOV_DEFAULT;
+
+        public float VerticalFov
+        {
+            get => verticalFov;
+            set
+            {
+                if (Math.Abs(verticalFov - value) < SpectatorCameraHelper.COMPARE_FLOAT_MEDIUM_THRESHOLD)
+                {
+                    return;
+                }
+
+                verticalFov = Mathf.Clamp(
+                    value,
+                    SpectatorCameraHelper.VERTICAL_FOV_MIN,
+                    SpectatorCameraHelper.VERTICAL_FOV_MAX);
+
+                if (Application.isPlaying &&
+                    SpectatorCameraManager != null &&
+                    SpectatorCameraManager.IsCameraSourceAsTracker() &&
+                    SpectatorCameraManager.IsFollowTrackerEqualTo(this))
+                {
+                    SpectatorCameraManager.SpectatorCameraBased.SpectatorCamera.fieldOfView = verticalFov;
+                    SpectatorCameraManager.SetupFrustum();
+                }
+            }
+        }
+
+        #region Panorama properties
+
+        [field: SerializeField]
+        public SpectatorCameraHelper.SpectatorCameraPanoramaResolution PanoramaResolution { get; set; } =
+            SpectatorCameraHelper.PANORAMA_RESOLUTION_DEFAULT;
+
+        [field: SerializeField]
+        public TextureProcessHelper.PictureOutputFormat PanoramaOutputFormat { get; set; } =
+            SpectatorCameraHelper.PANORAMA_OUTPUT_FORMAT_DEFAULT;
+
+        [field: SerializeField]
+        public TextureProcessHelper.PanoramaType PanoramaOutputType { get; set; } =
+            SpectatorCameraHelper.PANORAMA_TYPE_DEFAULT;
+
+        #endregion
+
+        [SerializeField] private SpectatorCameraHelper.FrustumLineCount frustumLineCount =
+            SpectatorCameraHelper.FRUSTUM_LINE_COUNT_DEFAULT;
+
+        public SpectatorCameraHelper.FrustumLineCount FrustumLineCount
+        {
+            get => frustumLineCount;
+            set
+            {
+                if (frustumLineCount == value)
+                {
+                    return;
+                }
+
+                frustumLineCount = value;
+
+                if (Application.isPlaying &&
+                    SpectatorCameraManager != null &&
+                    SpectatorCameraManager.IsCameraSourceAsTracker() &&
+                    SpectatorCameraManager.IsFollowTrackerEqualTo(this))
+                {
+                    SpectatorCameraManager.SetupFrustumLine();
+                }
+            }
+        }
+
+        [SerializeField] private SpectatorCameraHelper.FrustumCenterLineCount frustumCenterLineCount =
+            SpectatorCameraHelper.FRUSTUM_CENTER_LINE_COUNT_DEFAULT;
+
+        public SpectatorCameraHelper.FrustumCenterLineCount FrustumCenterLineCount
+        {
+            get => frustumCenterLineCount;
+            set
+            {
+                if (frustumCenterLineCount == value)
+                {
+                    return;
+                }
+
+                frustumCenterLineCount = value;
+
+                if (Application.isPlaying &&
+                    SpectatorCameraManager != null &&
+                    SpectatorCameraManager.IsCameraSourceAsTracker() &&
+                    SpectatorCameraManager.IsFollowTrackerEqualTo(this))
+                {
+                    SpectatorCameraManager.SetupFrustumCenterLine();
+                }
+            }
+        }
+
+        [SerializeField] private float frustumLineWidth = SpectatorCameraHelper.FRUSTUM_LINE_WIDTH_DEFAULT;
+
+        public float FrustumLineWidth
+        {
+            get => frustumLineWidth;
+            set
+            {
+                if (Math.Abs(frustumLineWidth - value) < SpectatorCameraHelper.COMPARE_FLOAT_SUPER_SMALL_THRESHOLD)
+                {
+                    return;
+                }
+
+                frustumLineWidth = Mathf.Clamp(
+                    value,
+                    SpectatorCameraHelper.FRUSTUM_LINE_WIDTH_MIN,
+                    SpectatorCameraHelper.FRUSTUM_LINE_WIDTH_MAX);
+
+                if (Application.isPlaying &&
+                    SpectatorCameraManager != null &&
+                    SpectatorCameraManager.IsCameraSourceAsTracker() &&
+                    SpectatorCameraManager.IsFollowTrackerEqualTo(this))
+                {
+                    SpectatorCameraManager.SetupFrustumLine();
+                }
+            }
+        }
+
+        [SerializeField] private float frustumCenterLineWidth = SpectatorCameraHelper.FRUSTUM_CENTER_LINE_WIDTH_DEFAULT;
+
+        public float FrustumCenterLineWidth
+        {
+            get => frustumCenterLineWidth;
+            set
+            {
+                if (Math.Abs(frustumCenterLineWidth - value) <
+                    SpectatorCameraHelper.COMPARE_FLOAT_SUPER_SMALL_THRESHOLD)
+                {
+                    return;
+                }
+
+                frustumCenterLineWidth = Mathf.Clamp(value, SpectatorCameraHelper.FRUSTUM_CENTER_LINE_WIDTH_MIN,
+                    SpectatorCameraHelper.FRUSTUM_CENTER_LINE_WIDTH_MAX);
+
+                if (Application.isPlaying &&
+                    SpectatorCameraManager != null &&
+                    SpectatorCameraManager.IsCameraSourceAsTracker() &&
+                    SpectatorCameraManager.IsFollowTrackerEqualTo(this))
+                {
+                    SpectatorCameraManager.SetupFrustumCenterLine();
+                }
+            }
+        }
+
+        [SerializeField] private Color frustumLineColor = SpectatorCameraHelper.LineColorDefault;
+
+        public Color FrustumLineColor
+        {
+            get => frustumLineColor;
+            set
+            {
+                if (frustumLineColor == value)
+                {
+                    return;
+                }
+
+                frustumLineColor = value;
+
+                if (Application.isPlaying &&
+                    SpectatorCameraManager != null &&
+                    SpectatorCameraManager.IsCameraSourceAsTracker() &&
+                    SpectatorCameraManager.IsFollowTrackerEqualTo(this))
+                {
+                    SpectatorCameraManager.SetupFrustumLine();
+                }
+            }
+        }
+
+        [SerializeField] private Color frustumCenterLineColor = SpectatorCameraHelper.LineColorDefault;
+
+        public Color FrustumCenterLineColor
+        {
+            get => frustumCenterLineColor;
+            set
+            {
+                if (frustumCenterLineColor == value)
+                {
+                    return;
+                }
+
+                frustumCenterLineColor = value;
+
+                if (Application.isPlaying &&
+                    SpectatorCameraManager != null &&
+                    SpectatorCameraManager.IsCameraSourceAsTracker() &&
+                    SpectatorCameraManager.IsFollowTrackerEqualTo(this))
+                {
+                    SpectatorCameraManager.SetupFrustumCenterLine();
+                }
+            }
+        }
+
+        public void ResetSetting()
+        {
+            LayerMask = SpectatorCameraHelper.LayerMaskDefault;
+            IsSmoothCameraMovement = SpectatorCameraHelper.IS_SMOOTH_CAMERA_MOVEMENT_DEFAULT;
+            SmoothCameraMovementSpeed = SpectatorCameraHelper.SMOOTH_CAMERA_MOVEMENT_SPEED_DEFAULT;
+            IsFrustumShowed = SpectatorCameraHelper.IS_FRUSTUM_SHOWED_DEFAULT;
+            VerticalFov = SpectatorCameraHelper.VERTICAL_FOV_DEFAULT;
+            PanoramaResolution = SpectatorCameraHelper.PANORAMA_RESOLUTION_DEFAULT;
+            PanoramaOutputFormat = SpectatorCameraHelper.PANORAMA_OUTPUT_FORMAT_DEFAULT;
+            PanoramaOutputType = SpectatorCameraHelper.PANORAMA_TYPE_DEFAULT;
+            FrustumLineCount = SpectatorCameraHelper.FRUSTUM_LINE_COUNT_DEFAULT;
+            FrustumCenterLineCount = SpectatorCameraHelper.FRUSTUM_CENTER_LINE_COUNT_DEFAULT;
+            FrustumLineWidth = SpectatorCameraHelper.FRUSTUM_LINE_WIDTH_DEFAULT;
+            FrustumCenterLineWidth = SpectatorCameraHelper.FRUSTUM_CENTER_LINE_WIDTH_DEFAULT;
+            FrustumLineColor = SpectatorCameraHelper.LineColorDefault;
+            FrustumCenterLineColor = SpectatorCameraHelper.LineColorDefault;
+        }
+
+        public void ExportSetting2JsonFile(in SpectatorCameraHelper.AttributeFileLocation attributeFileLocation)
+        {
+#if !UNITY_EDITOR
+			if (attributeFileLocation is SpectatorCameraHelper.AttributeFileLocation.ResourceFolder)
+			{
+				Debug.LogError("It's not allowed to save setting to resource folder in runtime mode");
+				return;
+			}
+#endif
+
+            var data = new SpectatorCameraHelper.SpectatorCameraAttribute(
+                CameraSourceRef,
+                Position,
+                Rotation,
+                LayerMask,
+                IsSmoothCameraMovement,
+                SmoothCameraMovementSpeed,
+                IsFrustumShowed,
+                VerticalFov,
+                PanoramaResolution,
+                PanoramaOutputFormat,
+                PanoramaOutputType,
+                FrustumLineCount,
+                FrustumCenterLineCount,
+                FrustumLineWidth,
+                FrustumCenterLineWidth,
+                FrustumLineColor,
+                FrustumCenterLineColor);
+
+#if UNITY_EDITOR
+            if (attributeFileLocation is SpectatorCameraHelper.AttributeFileLocation.ResourceFolder)
+            {
+                SpectatorCameraHelper.SaveAttributeData2ResourcesFolder(
+                    SceneManager.GetActiveScene().name,
+                    gameObject.name,
+                    data);
+            }
+            else if (attributeFileLocation is SpectatorCameraHelper.AttributeFileLocation.PersistentFolder)
+            {
+                SpectatorCameraHelper.SaveAttributeData2PersistentFolder(
+                    SceneManager.GetActiveScene().name,
+                    gameObject.name,
+                    data);
+            }
+#else
+			SpectatorCameraHelper.SaveAttributeData2PersistentFolder(
+				SceneManager.GetActiveScene().name,
+				gameObject.name,
+				data);
+#endif
+        }
+
+        public void LoadSettingFromJsonFile(in string jsonFilePath)
+        {
+            bool loadSuccess = SpectatorCameraHelper.LoadAttributeFileFromFolder(
+                jsonFilePath,
+                out SpectatorCameraHelper.SpectatorCameraAttribute data);
+            if (loadSuccess)
+            {
+                ApplyData(data);
+            }
+            else
+            {
+                Debug.Log($"Load setting from {jsonFilePath} file to scene gameObject {gameObject.name} failed.");
+            }
+        }
+
+        public void LoadSettingFromJsonFile(
+            in string sceneName,
+            in string trackerName,
+            in SpectatorCameraHelper.AttributeFileLocation attributeFileLocation)
+        {
+            if (string.IsNullOrEmpty(sceneName) || string.IsNullOrEmpty(trackerName))
+            {
+                Debug.LogError("sceneName or trackerName is null or empty");
+                return;
+            }
+
+            var loadSuccess = false;
+            SpectatorCameraHelper.SpectatorCameraAttribute data = new SpectatorCameraHelper.SpectatorCameraAttribute();
+            if (attributeFileLocation is SpectatorCameraHelper.AttributeFileLocation.ResourceFolder)
+            {
+                loadSuccess = SpectatorCameraHelper.LoadAttributeFileFromResourcesFolder(
+                    sceneName,
+                    trackerName,
+                    out data);
+            }
+            else if (attributeFileLocation is SpectatorCameraHelper.AttributeFileLocation.PersistentFolder)
+            {
+                loadSuccess = SpectatorCameraHelper.LoadAttributeFileFromPersistentFolder(
+                    sceneName,
+                    trackerName,
+                    out data);
+            }
+
+            if (loadSuccess)
+            {
+                ApplyData(data);
+            }
+            else
+            {
+                var fileDirectory = string.Empty;
+                if (attributeFileLocation is SpectatorCameraHelper.AttributeFileLocation.ResourceFolder)
+                {
+                    fileDirectory = System.IO.Path.Combine(Application.dataPath, "Resources");
+                }
+                else if (attributeFileLocation is SpectatorCameraHelper.AttributeFileLocation.PersistentFolder)
+                {
+                    fileDirectory = Application.persistentDataPath;
+                }
+
+                var fileName =
+                    SpectatorCameraHelper.GetSpectatorCameraAttributeFileNamePattern(sceneName, trackerName);
+
+                Debug.Log(
+                    $"Load setting from {fileDirectory}/{fileName} file to scene gameObject {gameObject.name} failed.");
+            }
+        }
+
+        public void ApplyData(in SpectatorCameraHelper.SpectatorCameraAttribute data)
+        {
+            Transform gameObjectTransform = transform;
+            gameObjectTransform.position = data.position;
+            gameObjectTransform.rotation = data.rotation;
+
+            LayerMask = data.layerMask;
+            IsSmoothCameraMovement = data.isSmoothCameraMovement;
+            SmoothCameraMovementSpeed = data.smoothCameraMovementSpeed;
+            IsFrustumShowed = data.isFrustumShowed;
+            VerticalFov = data.verticalFov;
+            PanoramaResolution = data.panoramaResolution;
+            PanoramaOutputFormat = data.panoramaOutputFormat;
+            PanoramaOutputType = data.panoramaOutputType;
+            FrustumLineCount = data.frustumLineCount;
+            FrustumCenterLineCount = data.frustumCenterLineCount;
+            FrustumLineWidth = data.frustumLineWidth;
+            FrustumCenterLineWidth = data.frustumCenterLineWidth;
+            FrustumLineColor = data.frustumLineColor;
+            FrustumCenterLineColor = data.frustumCenterLineColor;
+        }
+
+        private void Start()
+        {
+            if (SpectatorCameraManager != null)
+            {
+                SpectatorCameraManager.AddSpectatorCameraTracker(this);
+            }
+            else
+            {
+                InvokeRepeating(nameof(AddTracker), TryAddTrackerIntervalSecond, TryAddTrackerIntervalSecond);
+            }
+        }
+
+        private void OnEnable()
+        {
+            if (SpectatorCameraManager != null)
+            {
+                SpectatorCameraManager.AddSpectatorCameraTracker(this);
+            }
+        }
+
+        private void OnDisable()
+        {
+            if (SpectatorCameraManager != null)
+            {
+                SpectatorCameraManager.RemoveSpectatorCameraTracker(this);
+            }
+        }
+        
+        private void AddTracker()
+        {
+            if (SpectatorCameraManager != null)
+            {
+                SpectatorCameraManager.AddSpectatorCameraTracker(this);
+                CancelInvoke(nameof(AddTracker));
+            }
+        }
+    }
+}

com.htc.upm.vive.openxr/Runtime/Toolkits/Spectator/Scripts/SpectatorCameraTracker.cs.meta

@@ -0,0 +1,11 @@
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