JSFiddle - React, Tailwind, and code Playground

by k6e2n0t12

HTML

<div id="info">
  hw5 <br>GLSL
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r70/three.min.js"></script>
<script src="https://dl.dropboxusercontent.com/u/3587259/Code/Threejs/OrbitControls.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.5/dat.gui.min.js"></script>
<script id="myVertexShader" type="x-shader/x-vertex">
  uniform int shading;
  uniform int coordinate;
	varying vec3 color;
	varying vec4 pos;
  void perVertexShading() {
  	if (pos.x > 0.0) 
    	color = vec3 (1,1,1);
    else
    	color = vec3 (0,0,0);
  }
	void perPixelShading() {
  
  }
	void main() {
		gl_Position = projectionMatrix* modelViewMatrix * vec4( position, 1.0);
  	if(coordinate==0)
    	pos = vec4( position, 1.0);
  	else if(coordinate==1)
    	pos = modelMatrix * vec4( position, 1.0);
    else
    	pos = modelViewMatrix * vec4( position, 1.0);
    if (shading == 0)  // per-vertex shading
    	perVertexShading();
    else
    	perPixelShading();
  }
</script>
<script id="myFragmentShader" type="x-shader/x-fragment">
  varying vec3 color;
	varying vec4 pos;
  uniform int shading;
	void main() {
  	if(shading==0){
    	gl_FragColor = vec4 (color, 1.0);
    }
    else{
  		vec3 colorTemp;
    	if (pos.x > 0.0) 
    		colorTemp = vec3 (1,1,1);
    	else
    		colorTemp = vec3 (0,0,0);
			gl_FragColor = vec4 (colorTemp, 1.0);
    }
	}
</script>

CSS

#info {
  position: absolute;
  top: 2%;
  width: 100%;
  padding: 10px;
  text-align: center;
  color: #ffff00
}
#gui {
  position: absolute;
  top: 30px;
  right: 1%;
  height: 350px;
  width: 100px;
}
body {
  overflow: hidden;
}

JavaScript

var scene, renderer, camera;
var controls;
var jsonModel, jsonModel2;
var angle = 0,light1,floor;
init();
animate();
function init() {
  var width = window.innerWidth;
  var height = window.innerHeight;
  renderer = new THREE.WebGLRenderer({
    antialias: true
  });
  renderer.setSize(width, height);
  renderer.setClearColor(0x888888);
  document.body.appendChild(renderer.domElement);
  scene = new THREE.Scene();
  camera = new THREE.PerspectiveCamera(45, width / height, 0.1, 10000);
  camera.position.z = 200;
  camera.lookAt(new THREE.Vector3(0, 0, 0));
  controls = new THREE.OrbitControls(camera, renderer.domElement);
  pointLight = new THREE.PointLight(0xffffff);
  pointLight.position.set(0, 100, 200);
  //pointLight.castShadow = true;
  //scene.add(pointLight);
/////////////////////////////////////////////
	gcontrols = new function() {
    this.coordinate = 0;
    this.shading = 0;
    this.material = 0;
  }
  var gui = new dat.GUI();
  gui.domElement.id = 'gui';
  var f1 = gui.addFolder("Coordinate System");
  f1.add (gcontrols, 'coordinate', {'object': 0, 'world': 1, 'eye': 2});
  var f2 = gui.addFolder('Shading Computation');
  f2.add (gcontrols, 'shading', {'per-vertex':0, 'per-pixel':1});
  var f3 = gui.addFolder('Material');
  f3.add (gcontrols, 'material', {'LambertMaterial':0, 'PhongMaterial':1});
/////////////////////////////////////////////////////////////////
  teapotMaterial = new THREE.ShaderMaterial({
    uniforms: {
    	lightpos: {type:'v3', value: new THREE.Vector3(0, 30, 20) },
	  shading: {type:'i', value: 0},
      coordinate: {type:'i', value: 0},
	},
    vertexShader: document.getElementById('myVertexShader').textContent,
    fragmentShader: document.getElementById('myFragmentShader').textContent
  });
  var jsonLoader = new THREE.JSONLoader();
  var teapotGroup = new THREE.Object3D();
  var url = "https://k6e2n0t12.github.io/homework-repository/teapot.json";
  jsonLoader.load(url, function(geometry, materials) {
    //var material =...