测试代码:
private sysActiveScene(){
var light = this.battleScene.getChildByName("directional_light");
light.active = !light.active;
TimerManager.instance.setTimeout(this.sysActiveScene,this,500);
}
this.sysActiveScene();就是每0.5秒设置light 激活和非激活.
然后场景表现看着像light叠加了
