引入js文件

<script src='js/three.min.js'></script>
<script src='js/dat.gui.min.js'></script>
<script src='js/chroma.min.js'></script>
<script src='js/simplex-noise.min.js'></script>
<script src='js/OrbitControls.js'></script>
<script src='js/TweenMax.min.js'></script>
<script src='js/EffectComposer.js'></script>
<script src='js/RenderPass.js'></script>
<script src='js/ShaderPass.js'></script>
<script src='js/CopyShader.js'></script>
<script src='js/LuminosityHighPassShader.js'></script>
<script src='js/UnrealBloomPass.js'></script>
<script  src="js/index.js"></script>