ame(animate);

                if (mixers.length > 0) {
                    for (let i = 0; i < mixers.length; i++) {
                        mixers[i].update(clock.getDelta());
                    }
                }

                if (!arToolkitSource.ready) {
                    return;
                }

                arToolkitContext.update( arToolkitSource.domElement )

                // update scene.visible if the marker is seen
                scene.visible = camera.visible;

                re