* update lottie information * @param {*} lottieLayer lottie element object * @param {boolean} forceUpdate forceUpdate

* update lottie information * @param {*} lottieLayer lottie element object * @param {boolean} forceUpdate forceUpdate

* update lottie information * @param {*} lottieLayer lottie element object * @param {boolean} forceUpdate forceUpdate

Computes the world transform using the parent bone and this bone's local transform.

Register event listeners on {@link Renderer#domElement this.domElement}.

* 创建动画元素 * @private * @param {object} session session information

* @private * @param {object} comp comp container * @param {arrya} layers layers * @param {object} session parse session date * @return {ob

* 销毁所有挂载到插槽的 GameObject（内部使用）

* emit frame * @private * @param {*} np now frame

* 提取空图层 * @private * @param {object} layer layer data * @param {object} session session * @return {lottieLayer}

* 提取形状图层 * @private * @param {object} layer layer data * @param {object} session session * @return {lottieLayer}

* 提取实体图层 * @private * @param {object} layer layer data * @param {object} session session * @return {lottieLayer}

* 提取图片图层 * @private * @param {object} layer layer data * @param {object} session session * @return {lottieLayer}

* 提取文字图层 * @private * @param {object} layer layer data * @param {object} session session

* 处理等待容器就绪的 slot 挂载请求（由 SpineSystem 每帧调用）

Unregister event listeners on {@link EventSystem#domElement this.domElement}.

* ship a perspective layer once time * @param {object} comp comp container * @param {object} perspective perspective layer

* is this time frameNum spill the range * @private * @return {boolean}

* 递归同步 gameObject 及其子树的 transform 到对应的渲染容器

Updates the state of interactive objects.

* update timeline with time snippet * @private * @param {number} snippet snippet * @return {boolean} frameNum status

Queues an animation by name. * * See {@link #addAnimationWith()}.

* Add observe event to `componentObserver` on system * @param {string} param0.systemName - system name * @param {string} param0.componentName - comp

Adds the ticker listener.

Adjusts the bone rotation so the tip is as close to the target position as possible. The target is specified in the world * coordinate system.

Applies 2 bone IK. The target is specified in the world coordinate system. * @param child A direct descendant of the parent bone.

Adjusts the parent and child bone rotations so the tip of the child is as close to the target position as possible. The * target is specified in th