add = function (x, y, key, animationName, loop)
        {
            if (isWebGL)
            {
                this.scene.sys.renderer.pipelines.clear();
            }

            var spinePlugin = this.scene.sys[pluginKey];
            var spineGO = new SpineGameObject(this.scene, spinePlugin, x, y, key, animationName, loop);

            this.displayList.add(spineGO);
            this.updateList.add(spineGO);

            if (isWebGL)
            {
                this.scene.sys.renderer.pipelines.rebind();
            }

            return spineGO;
        }
An internal vector3 used by the screen to world method.

@name SpinePlugin#temp2
@private
@type {spine.webgl.Vector3}
@since 3.19.0