public static GLTFRoot Deserialize(TextReader textReader)
        {
            var jsonReader = new JsonTextReader(textReader);
            var root       = new GLTFRoot();

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

                case "scene":
                    root.Scene = SceneId.Deserialize(root, jsonReader);
                    break;

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

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

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

                //case "lights":
                //	root.Lights = jsonReader.ReadList(() => GLTFLight.Deserialize(root, jsonReader));
                //	break;
                default:
                    root.DefaultPropertyDeserializer(root, jsonReader);
                    break;
                }
            }

            return(root);
        }