HW7

by KUO YOU-TING

HTML

<div id="info">HW7</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r76/three.min.js"></script>
<script src="https://dl.dropboxusercontent.com/u/3587259/Code/Threejs/OrbitControls.js">
</script>
<script src="//cdnjs.cloudflare.com/ajax/libs/dat-gui/0.5.1/dat.gui.min.js"></script>

<script id="myVertexShader" type="x-shader/x-vertex">
	varying vec2 vUv;
	void main() {
		gl_Position = projectionMatrix* modelViewMatrix * vec4( position, 1.0);
		vUv = uv;
	}
</script>
<script id="myFragmentShader" type="x-shader/x-fragment">
	uniform sampler2D texture;
	varying vec2 vUv;
  uniform float fade;
vec3 rgb2hsv(vec3 c)
{
    vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
    vec4 p = mix(vec4(c.bg, K.wz), vec4(c.gb, K.xy), step(c.b, c.g));
    vec4 q = mix(vec4(p.xyw, c.r), vec4(c.r, p.yzx), step(p.x, c.r));

    float d = q.x - min(q.w, q.y);
    float e = 1.0e-10;
    return vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);
}

vec3 hsv2rgb(vec3 c)
{
    vec4 K = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
    vec3 p = abs(fract(c.xxx + K.xyz) * 6.0 - K.www);
    return c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
}	
	void main() {
		vec4 color = texture2D (texture, vUv);
    vec3 hsv = rgb2hsv (color.rgb);
    hsv.y /= pow(2.,fade);
    vec3 rgb = hsv2rgb (hsv.xyz);
	gl_FragColor = vec4 (rgb, 1.0);
	}
</script>

CSS

#info {
  position: absolute;
  top: 2%;
  width: 100%;
  padding: 10px;
  text-align: center;
  color: #ffff00
}

body {
  background-color: #fff;
  color: #111;
  margin: 0px;
  overflow: hidden;
  font-family: Monospace;
  font-size: 10px;
  position: absolute;
}

JavaScript

var scene, renderer, camera;
var controls;
var pointLight;
var sceneRTT, sceneColor, sceneMono, rtTexture;
var torus1, torus2, torus3;
var blocker1, blocker2, blocker3;
var rttmaterial, quad;
var camera2;
var angle = 0.02;
init();
animate();

function init() {
	rtTexture = new THREE.WebGLRenderTarget( 
		1024,1024,
		{ minFilter: THREE.LinearFilter, magFilter: THREE.NearestFilter, format: THREE.RGBFormat } 
		);

	renderer = new THREE.WebGLRenderer({antialias: true});
	renderer.setSize (window.innerWidth, window.innerHeight);
	document.body.appendChild (renderer.domElement);
	renderer.setClearColor (0x888888);
	renderer.autoClear = false;
  
  camera = new THREE.PerspectiveCamera (45, window.innerWidth/window.innerHeight, 0.1, 10000);
  camera.position.set(200, 50, 300);
	camera.lookAt (new THREE.Vector3(0,0,0));
  
  camera2 = new THREE.OrthographicCamera (-150,150,150,-150, -10000,10000);
  
	controls = new THREE.OrbitControls (camera, renderer.domElement);
  
  sceneRTT = new THREE.Scene();	
	pointLight = new THREE.PointLight (0xffffff);
	pointLight.position.set (0,300,200);
	sceneRTT.add (pointLight);
  
  torus1 = new THREE.Mesh (new THREE.TorusGeometry(10, 0.5, 16, 100),
	new THREE.MeshLambertMaterial({color:0xff1234}));
  torus1.rotation.x = Math.PI/2;
  torus1.scale.set (10,10,10);
	sceneRTT.add (torus1);
  torus2 = new THREE.Mesh (new THREE.TorusGeometry(10, 0.5, 16, 100),
	new THREE.MeshLambertMaterial({color:0xff1234}));
  torus2.rotation.y = Math.PI/2;
  torus2.scale.set (10,10,10);
	sceneRTT.add (torus2);
  torus3 = new THREE.Mesh (new THREE.TorusGeometry(10, 0.5, 16, 100),
	new THREE.MeshLambertMaterial({color:0xff1234}));
  torus3.scale.set (10,10,10);
	sceneRTT.add (torus3);
	
  sceneColor = new THREE.Scene();
  var pointLight1 = new THREE.PointLight (0xffffff);
	pointLight1.position.set (0,300,200);
  sceneColor.add(pointLight1);
  
  var loader = new THREE.ObjectLoader();
  loader.load ('https://youtingkuo.github.io/model/kart.json', 
  function...