/// <summary>
        /// Load the remote URI data into a byte array.
        /// </summary>
        private IEnumerator LoadBuffer(GLTFBuffer buffer)
        {
            if (buffer.Uri != null)
            {
                byte[] bufferData;
                var    uri = buffer.Uri;

                if (uri.StartsWith(Base64StringInitializer))
                {
                    var base64Data = uri.Substring(Base64StringInitializer.Length);
                    bufferData = Convert.FromBase64String(base64Data);
                }
                else
                {
                    var www = UnityWebRequest.Get(AbsolutePath(uri));

                    yield return(www.Send());

                    bufferData = www.downloadHandler.data;
                }

                _bufferCache[buffer] = bufferData;
            }
        }
        public static GLTFRoot Deserialize(JsonReader reader)
        {
            var root = new GLTFRoot();

            if (reader.Read() && reader.TokenType != JsonToken.StartObject)
            {
                throw new Exception("gltf json must be an object");
            }

            while (reader.Read() && reader.TokenType == JsonToken.PropertyName)
            {
                var curProp = reader.Value.ToString();

                switch (curProp)
                {
                case "extensionsUsed":
                    root.ExtensionsUsed = reader.ReadStringList();
                    break;

                case "extensionsRequired":
                    root.ExtensionsRequired = reader.ReadStringList();
                    break;

                case "accessors":
                    root.Accessors = reader.ReadList(() => GLTFAccessor.Deserialize(root, reader));
                    break;

                case "animations":
                    root.Animations = reader.ReadList(() => GLTFAnimation.Deserialize(root, reader));
                    break;

                case "asset":
                    root.Asset = GLTFAsset.Deserialize(root, reader);
                    break;

                case "buffers":
                    root.Buffers = reader.ReadList(() => GLTFBuffer.Deserialize(root, reader));
                    break;

                case "bufferViews":
                    root.BufferViews = reader.ReadList(() => GLTFBufferView.Deserialize(root, reader));
                    break;

                case "cameras":
                    root.Cameras = reader.ReadList(() => GLTFCamera.Deserialize(root, reader));
                    break;

                case "images":
                    root.Images = reader.ReadList(() => GLTFImage.Deserialize(root, reader));
                    break;

                case "materials":
                    root.Materials = reader.ReadList(() => GLTFMaterial.Deserialize(root, reader));
                    break;

                case "meshes":
                    root.Meshes = reader.ReadList(() => GLTFMesh.Deserialize(root, reader));
                    break;

                case "nodes":
                    root.Nodes = reader.ReadList(() => GLTFNode.Deserialize(root, reader));
                    break;

                case "samplers":
                    root.Samplers = reader.ReadList(() => GLTFSampler.Deserialize(root, reader));
                    break;

                case "scene":
                    root.Scene = GLTFSceneId.Deserialize(root, reader);
                    break;

                case "scenes":
                    root.Scenes = reader.ReadList(() => GLTFScene.Deserialize(root, reader));
                    break;

                case "skins":
                    root.Skins = reader.ReadList(() => GLTFSkin.Deserialize(root, reader));
                    break;

                case "textures":
                    root.Textures = reader.ReadList(() => GLTFTexture.Deserialize(root, reader));
                    break;

                default:
                    root.DefaultPropertyDeserializer(root, reader);
                    break;
                }
            }

            return(root);
        }