html5 canvas碎片3D环绕地球天体运动动画特效

html5 canvas碎片3D环绕地球天体运动动画特效，模拟3D天体运动效果，非常有空间感。

引入js文件

<script src='js/three.min.js'></script>
<script src='js/CopyShader.js'></script>
<script src='js/EffectComposer.js'></script>
<script src='js/FilmPass.js'></script>
<script src='js/FilmShader.js'></script>
<script src='js/ShaderPass.js'></script>
<script src='js/RenderPass.js'></script>
<script src="js/index.js"></script>