public static GLTFCamera Deserialize(GLTFRoot root, JsonReader reader)
        {
            var camera = new GLTFCamera();

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

                switch (curProp)
                {
                case "orthographic":
                    camera.Orthographic = GLTFCameraOrthographic.Deserialize(root, reader);
                    break;

                case "perspective":
                    camera.Perspective = GLTFCameraPerspective.Deserialize(root, reader);
                    break;

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

            return(camera);
        }
        public static GLTFCameraOrthographic Deserialize(GLTFRoot root, JsonReader reader)
        {
            var cameraOrthographic = new GLTFCameraOrthographic();

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

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

                switch (curProp)
                {
                case "xmag":
                    cameraOrthographic.XMag = reader.ReadAsDouble().Value;
                    break;

                case "ymag":
                    cameraOrthographic.YMag = reader.ReadAsDouble().Value;
                    break;

                case "zfar":
                    cameraOrthographic.ZFar = reader.ReadAsDouble().Value;
                    break;

                case "znear":
                    cameraOrthographic.ZNear = reader.ReadAsDouble().Value;
                    break;

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

            return(cameraOrthographic);
        }