三维物体的旋转以及缩放1)序利用粒子系统模拟烟火视觉效果. 2)点击工具栏三个按键分别可以发射黄色,红色,白色烟火. 3)点击程序下拉菜单下模式下可以改变烟火发射模式: -Rotating three-dimensional objects, as well as zoom 1) sequence using particle system visual effects pyrotechnic simulation .2) Click the toolbar button, resp